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GRE Prep > Root List (O-S) > Flashcards

Root List (O-S) Flashcards

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1
Q

Ob

A

Toward, to, against, over

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2
Q 
Obese
Obfuscate
Oblique
Obsequious 
Obstreperous 
Obstruct
Obtuse
A 
Extremely fat
Render indistinct
Having a slanting direction
Overly submissive
Stubbornly adhering to an idea 
Stubbornly adhering to an idea
Noisily defiant
To block or fill with obstacles 
Not sharp, pointed, or acute
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3
Q

Omni

A

All

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4
Q

Omnibus
omnipotent
Omnipresent
Omniscient

A

An anthology of the works of one author
All powerful
Everywhere at one time
Having infinite knowledge

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5
Q

Oner

A

Burden

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6
Q

Exonerate
Onerous
Onus

A

To free from blame
Burdensome
Burden

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7
Q

Oss/oste

A

Bone

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8
Q

Ossify
Ossuary
Osteopathy

A

To become bone
A place where bones are kept
Medical system based on belief that many illnesses can be traced to issues in skeletal system

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9
Q

Pac/peac

A

Peace

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10
Q

Appease
Pacifier
Pacify
Pact

A

To bring peace to
Something that eases anger
To ease the anger or agitation of
Formal agreement

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11
Q

Palp

A

To feel

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12
Q

Palpable
Palate
Palmitate

A

Capable of being felt
To feel
To beat quickly

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13
Q

Pan/pant

A

All, everyone

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14
Q 
Pandemic
Panegyric 
Panoply 
Panorama
Pantheon
A

Widespread
Formal or elaborate praise
Wide ranging and impressive array or display
Unobstructed and wide view of extensive area
Public building containing tombs or memorials

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15
Q

Par

A

Equal

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16
Q 
Apartheid
Disparage
Disparate
Par 
parity
A 
Any system that separates people
To belittle
Essentially different
An equality in value 
Equally
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17
Q

Para

A

Next to, beside

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18
Q 
Parable
Paragon
Parallel
Paranoid
Parasite 
Parody
A

Short, allegorical story to teach lesson
Model of excellence
Extending in the same direction
Distrust. Of others
Organism lives on other thing, obtains nutrients from
Imitate for purposes of satire

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19
Q

Pas/pat/path

A

Feeling, suffering, disease

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20
Q 
Compassion
Dispassionate
Empathy
Impassive
Pathogenic
Sociopath 
Sympathy
A 
Deep sympathy 
Devoid of personal feeling
Identification with feelings of others 
Showing or feeling no emotion
Causing disease 
Person whose behavior is antisocial 
Harmony or agreement in feeling
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21
Q

Pau/po/pov/pu

A

Few, little, poor

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22
Q 
Impoverishe
Paucity 
Pauper
Poverty
Puerile
Pusillanimous
A 
To deplete
Smallness of quantity
Person without any personal means of support 
Condition of being poor 
Childish 
Lacking courage
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23
Q

Pec

A

Money

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24
Q

Impecunious
Peculation
Pecuniary

A

Having no money
Embezzlement
Relating to money

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25
Q

Ped

A

Child, education

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26
Q

Encyclopedia
Pedagogue
Pedant
Pediatrician

A

Book or set of books containing articles on various topics
Teach
One who displays learning ostentatiously
Doctor for kids

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27
Q

Ped/pod

A

Food

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28
Q 
Antipodes
Expedite
Impede
Pedal
Pedestrian
Podium
A

Places that are diametrically opposite on globe
To speed up the progress
To read progress by means of obstacles or hindrances
Food operated lever
Person who travels on foot
Small platform

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29
Q

Pel

A

To drive, to push

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30
Q 
Compel
Dispel 
Expel 
Impel 
Propel
A 
To force
To drive away
To drive out
To force
To drive forward
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31
Q

Pen/pun

A

To pay, to compensate

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32
Q 
Penal
Penalty
Penance
Penitent
Punitive
A 
Of or pertaining to punishment 
Punishment for violation 
Punishment undergone to express regret 
Contrite
Serving for or inflicting punishment
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33
Q

Pen/pene

A

Almost

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34
Q

Peninsula
Penultimate
Penumbra

A

Landmass surround almost all by water
Second to last
Shaded area between pure shadow and pure light

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35
Q

Pend/pens

A

To hang, to weight, to pay

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36
Q 
Appendage
Appendix
Compensate 
Depend 
Indispensable 
Stipend
A 
Limb or other part from central structure
Supplementary material
Counterbalance
To rely 
Absolutely necessary 
Periodic payment
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37
Q

Per

A

Completely

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38
Q 
Perforate
Perfunctory
Perplex
Persistent
Perspicacious
Pertinacity
Peruse
A 
To make way through or into something
Performed merely as routine 
To cause to be puzzled
Lasting or enduring
Shrewd 
Resolute
To read with thoroughness
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39
Q

Peri

A

Around

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40
Q

Perimeter
Peripatetic
Periscope

A

The border
Walking or traveling
Optical instrument for seeing

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41
Q

Pet/pit

A

To go, to seek, to strive

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42
Q 
Appetite
Centripetal
Compete
Impetuous 
Petition
Petulant
A 
Desire for food
Moving toward the center
To strive to outdo
Characterized by rash action
Formally drawn request for some benefit
Showing sudden irritation
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43
Q

Phil

A

Love

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44
Q

Bibliophile
Philatelist
Philology
Philosopher

A

One that loves books
Collects postage stamps
Study of literary texts to establish authenticity
One who investigates the truths and principles of being

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45
Q

Phob

A

Fear

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46
Q

Phon

A

Sound

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47
Q 
Euphony 
Megaphone
Phonetics
Polyphony
Telephone
A 
Quality of sounding good
Device to magnify sound
Study of sounds
Use of simultaneous melodic lines to produce harmonies in music
Device to transmit sound at distance
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48
Q

Photo

A

Light

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49
Q

Plac

A

To please

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50
Q 
Complacent
Complaisant
Implacable
Placebo
Placid
A 
Self satisfied
Include to please
Unable to be pleased
Substance with no affects
Pleasantly calm or peaceful
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51
Q

Ple/plen

A

To fill, full

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52
Q 
Complete
Deplete
Implement
Plenitude 
Plethora
Replete 
Supplement
A 
Having all parts
To decrease
Instrument to accomplish work
Fullness
Excess 
Abundantly supplied
Add to supply a deficiency
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53
Q

Plex/plic/ply

A

To fold, twist, tangle, bend

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54
Q 
Complex
Duplicity 
Implicate
Implicit
Replica
Supplicate
A 
Composed of many interconnected parts
Deceitfulness in speech 
To show to be involved
Not expressly stated
Any close copy
To make humble
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55
Q

Poly

A

Many

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56
Q

Pon/pos/pound

A

To put, to place

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57
Q 
Component
Expose
Expound
Juxtapose
Repository
A 
Constituent part
Lay open to danger
Set forth in detail
Place close together or side by side
Receptacle or place where things are deposited
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58
Q

Port

A

To carry

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59
Q 
Deportment
Disport 
Export
Import
Importune
Portable
A 
Conduct
Diver oneself
Transmit abroad 
Bring in from foreign country
Urge with persistence
Easily carried
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60
Q

Post

A

Behind, after

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61
Q

Post facto
Posterior
Posterity
Posthumous

A

After the fact
Rear
Future generations
After death

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62
Q

Pot

A

To drink

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63
Q

Potable
Potation
Potion

A

Drinkable
Drinking
Drinkable medicine

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64
Q

Pre

A

Before, in front

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65
Q 
Precarious
Precedent
Precept
Precocious
Premonition
Presentment
A

Dependent on circumstances beyond control
Act that serves as example for other situations
Commandment as rule of action
Advanced in development or talent
Feeling of anticipation over future event
Foreboding

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66
Q

Prehend/prise

A

To take, to get, to seize

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67
Q 
Apprehend
Comprise
Enterprise
Reprehensible 
Reprisals
Surprise
A 
To take into custody 
To include
Project undertaken
Deserving rebuke or censure
Retaliation against enemy 
Unexpected
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68
Q

Pri/prim

A

First

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69
Q

Pro

A

In front, before, much, for

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70
Q 
Problem
Proceed
Profuse 
Prolific
Propound 
Proselytize 
Provident
A 
Difficult question
Go forward 
Spending or giving freely
Highly fruitful 
Set forth for consideration 
Convert or attempt to recruit 
Having or showing foresight
71
Q

Prob

A

To prove, to test

72
Q 
Approbation
Opprobrium 
Probe
Probity
Reprobate
A 
Praise
Disgrace from shameful conduct
Search or examine thoroughly 
Honesty
Depraved or wicked person
73
Q

Prop/prox

A

Near

74
Q

Prot/proto

A

First

75
Q

Protagonist
Protocol
Prototype
Protozoan

A

Main character
Diplomatic etiquette
First version
Single called

76
Q

Pseud/pesudo

A

False

77
Q

Pug

A

To fight

78
Q

Impugn
Pugilist
Pugnacious
Repugnant

A

Challenge as false
Fighter
Quarrel or fight readily
Objectionable

79
Q

Punc/pung/poign

A

To point, to prick, to pierce

80
Q 
Compunction
Expunge 
Point
Punctilious 
Puncture
Pungent
A 
Feeling of uneasiness 
Erase, eliminate
Sharp or tapering end
Strict or exact observance
Act of piercing
Caustic or sharply expressive
81
Q

Pyr

A

Fire

82
Q

Pyre
Pyromania
Pyrosis
Pyrotechnics

A

Bonfire
Urge to start fires
Heartburn
Fireworks

83
Q

Quad/quar/quat

A

Four

84
Q

Que/quis

A

To seek

85
Q 
Acquire
Conquest 
Exquisite 
Inquisitive 
Perquisite 
Querulous 
Query
A 
To come into possession 
Act gaining control
Special beauty 
Given to research 
Gratuity 
Full of complaints 
Question
86
Q

Quie/quit

A

Quiet, rest

87
Q 
Acquiesce 
Disquiet 
Quiescence
Quiet
Tranquil
A 
To comply 
Lack of calm 
Condition of being at rest
Making little or no sound
Free from commotion
88
Q

Quin/quint

A

Five

89
Q

Raci/radi

A

Root

90
Q

Deracinated
Eradicate
Radical
Radish

A

To uproot
To uproot
Pertaining to roots
Root veggie

91
Q

Rami

A

Branch

92
Q

Re

A

Back, again

93
Q

Recline
Regain
Remain
Reorganize request

A 
Lean back
Gain again 
Stay behind 
Organize again 
To ask
94
Q

Rect

A

Straight, right

95
Q 
Correct
Direct
Erect
Rectangle 
Rectitude
A 
To set right
To guide
Upright
Four sided figure
Moral uprightness
96
Q

Reg

A

King, rule

97
Q 
Interregnum 
Realm 
Regal
Regent
Regicide 
Regiment
Regular
A 
Period between kinds
Kingdom 
Kindly 
One who serves on behalf of a king
Killing a kind
Body of troops 
Having structure following some rule
98
Q

Retro

A

Backward

99
Q

Retroactive
Retrofit
Retrograde
Retrospective

A

Extending to things that happened in past
To install newer parts into old structure
Move backward
Looking at past

100
Q

Rog

A

To ask

101
Q 
Abrogate
Arrogant 
Derogatory 
Interrogate 
Surrogate
A 
Abolish 
Making claims to importance
Claim unwarrantable
Belittling
To ask questions of
Person appointed to act for another
102
Q

Rub/rud

A

Red

103
Q 
Rouge
Rubella
Rubicund 
Rubric 
Russet
A 
Red power for makeup
German measles 
Reddish, rosy cheeks
Rule
Reddish brown
104
Q

Rud

A

Crude

105
Q

Erudite
Rude
Rudimentary
Rudiments

A

Scholarly
Uncivilized
Undeveloped
First principles

106
Q

Sarc/sanct

A

Holy

107
Q 
Execrable 
Sacrament 
Sacred
Sacrifice
Sacrilege 
Sanctify 
Sanction
A 
Abominable
Something regarded as possessing sacred character
Devoted to religious purpose
Offering of something 
Violation of something sacred 
To make holy 
Authoritative
108
Q

Sag/sap/sav

A

Taste, thinking, discerning

109
Q 
Insipid
Sagacious
Sage
Sapient
Savant
Savor
A 
Tasteless
Perceptive
Wise
Wise
Learned person
Taste
110
Q

Sal/sil/sault/sult

A

To leap, to jump

111
Q 
Assault
Desultory 
Exult
Insolent
Insult 
Resilient
Salient
Somersault
A 
Sudden or violent attack
Random
To show or feel joy 
Boldly rude
To treat with contemptuous rudeness
Able to spring back to an original form
Prominent
To roll the body
112
Q

Sal

A

Salt

113
Q

Salu

A

Health

114
Q

Salubrious

Salutary

A

Healthful

Healthful

115
Q

Salv

A

To save

116
Q

Salvage
Salvation
Savior

A

To save
Being saved
One who saves

117
Q

San

A

Healthy

118
Q

Sane
Sanitarium
Sanitary

A

Mentally healthy
Place of healing
Promoting health

119
Q

Sang

A

Blood

120
Q

Consanguinity
Sanguinary
Sanguine

A

Being related by blood
Bloody
Hopeful

121
Q

Sat

A

Enough

122
Q 
Assets
Dissatisfied
Sate
Satisfy
Saturate
A 
Property 
Feeling that one does not have enough 
To fill
To meet ones desires
To fill completely
123
Q

Sci

A

To now

124
Q 
Conscience 
Conscious
Omniscient
Prescient
Unconscionable
A 
The inner sense of right and wrong 
Aware of own existence
Knowing everything 
Having knowledge of things before they happen 
Unscrupulous
125
Q

Scribe/script

A

To write

126
Q 
Ascribe
Circumscribe
Conscription
Describe
Postscript
Proscribe
Scribble
Script 
Transcript
A 
To credit or assign
To draw line around
Draft
To tell in words
Any addition
Condemn as harmful 
To write hastily 
Handwriting
Written or typed copy
127
Q

Se

A

Apart, away

128
Q 
Secede
Sedition
Seduce
Segregate
Select 
Separate 
Sequester
A 
To withdrawal formally 
Incitement of discontent
To lead astray 
To separate or set apart 
To choose in preference
To keep apart
To remove
129
Q

Sec/sequ/sue/sui

A

To follow

130
Q 
Non sequitur 
Obsequious 
Prosecute 
Pursue 
Second
Sequence
Suite
A 
Inference or conclusion that does not follow from premises
Fawning
To seek to enforce
To chase after
Next after first
Following one thing after another 
Series
131
Q

Sed/sess/sid

A

To sit, to settle

132
Q 
Assiduous
Dissident
Insidious
Preside
Resident
Residual
Sediment 
Session
A 
Diligent, persistent
Disagreeing
Intended to entrap
To exercise management or control
Person who lives in place
Remaining
The matter that settles to bottom 
Meeting at which people sit together
133
Q

Sem

A

Seed, to sow

134
Q

Disseminate
Semen
Seminary

A

To spread
Seed
A school

135
Q

Semi

A

Half

136
Q

Semicircle

Semiconscious

A

Half circle

Only partly conscious

137
Q

Sen

A

Old

138
Q

Senate
Senescent
Senile
Sire

A

Highest legislative body
Getting old
Relating to old age
Title for king

139
Q

Sens/sent

A

To feel, to be aware

140
Q 
Dissent
Insensate 
Presentment
Resent
Sense
Sensory 
Sentiment
Sentinel
A 
Differ in opinion
Without feeling
Feeling that something is about to happen
To feel or show displeasure
Any of the faculties by which humans and animals perceive stimuli 
Of or pertaining to the senses 
An attitude or feeling toward something 
Person or thing
141
Q

Sin/sinu

A

Bend, fold, curve

142
Q

Insinuate
Sinuous
Sinus

A

To introduce in sneaky or winding ways
Moving in a benign or wavy manner
Curved cavity

143
Q

Sol

A

Alone

144
Q 
Desolate
Isolate
Soliloquize 
Solipsism 
Solitude
A 
Deserted
Set apart
Talk to oneself
Believe that only thing that exists is oneself 
State of being alone
145
Q

Sol

A

Loosen, to free

146
Q 
Absolution
Dissolute
Dissolution
Dissolve
Resolution 
Soluble
A 
Forgiveness
Indifferent to oral restraints
Act or process of dissolving into parts
Make solution of
Formal expression of opinion
Capable of being dissolved
147
Q

Sol

A

Sun

148
Q

Parasol
Solar
Solarium
Solstice

A

Umbrella
Related to sun
Sunroom
Sun reaches highest point

149
Q

Somn

A

Sleep

150
Q 
Insomnia
Somnambulist 
Somniferous 
Somniloquist 
Somnolent
A 
Inability to sleep
Sleepwalker 
Sleep inducing 
Talking while sleeping
Sleep inducing
151
Q

Soph

A

Wisdom

152
Q

Sophism

Sophisticated

A

Superficially appealing but fallacious argument

Complex

153
Q

Sourc/surg/surrect

A

To rise

154
Q 
Insurgent
Insurrection
Resurrection
Source
Surge
A 
Rising up in revolution
Rising up in rebellion
Coming back to life
Where something comes from 
To rise up forcefully
155
Q

Spec/spic

A

To look, to see

156
Q 
Circumspect 
Conspicuous 
Perspective
Perspicacious
Retrospective
Specious
Spectrum 
Speculation
A 
Watchful 
Easily seen or noticed
Mental view of facts
Keen mental perception
Contemplative of past situations 
Deceptively attractive 
Broad range of related things that form continuous series 
Contemplation or consideration of some subject
157
Q

Spir

A

Breath

158
Q

Aspire
Expire
Spirit

A

To desire
To breathe out
The breath of life

159
Q

Sta/sti

A

To stand, to be in place

160
Q 
Apostasy
Constitute 
Destitute
Obstinate
Stasis 
Static
A 
Renunciation of an object of ones previous loyalty 
To make up
Without means of subsistence
Stubbornly adherent to a purpose 
State of equilibrium or inactivity 
Bodies at rest
161
Q

Strict/string/stran

A

To tighten, to bind

162
Q

Stringent
Constrain
Restriction
Strangle

A

Causing to tighten
Confine
Limitation
Kill by suffocation

163
Q

Sau

A

Sweet, pleasing, to urge

164
Q

Assuage
Dissuade
Persuade
Suave

A

Make less severe
To deter
Encourage
Smoothly agreeable

165
Q

Sub/sup

A

Below, under

166
Q 
Subliminal 
Submissive
Subsidiary
Subterfuge 
Subtle 
Suppose
A

Existing or operating below the threshold of consciousness
Inclined or ready to submit
Serving to assist or supplement
Artifice or expedient used to evade a rule
Thin, tenuous
Put down as a hypothesis

167
Q

Summ

A

Highest, total

168
Q

Consummate
Sum
Summary
Summit

A

Highly qualified
Total
Concise statement of the total findings
Highest point

169
Q

Super/sur

A

Over, above

170
Q 
Supercilious 
Superfluous 
Superlative
Supersede
Surmount 
Surpass 
Surveillance
A 
Arrogant
Extra
Highest kind or order
Replace in power 
Get over or across
To go beyond in amount
A watch kept over someone
171
Q

Sym/syn

A

Together

172
Q 
Symbiosis 
Symmetry 
Sympathy 
Symposium 
Synonym
Synthesis
A

Living together in mutually beneficial relationship
Balanced proportions
Affinity
Meeting at which ideas are discussed
Word that means the same thing combining new things

173
Q

Reticent
Tacit
Taciturn

A

Disposed to be silent
Unspoken understanding
Uncommunicative

GRE Prep (7 decks)

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