Common Greek/Latin Root Words

Common Prefixes, Suffixes, and Root Words:Roots  
Root Meaning Examples
acer, acid, acri bitter, sour, sharp acerbic, acidity, acrid, acrimony
acu sharp acute, acupuncture, accurate
ag, agi, ig, act do, move, go agent, agenda, agitate, navigate,
ali, allo, alter other alias, alibi, alien, alloy, alter, alter ego, altruism
alt(us) high, deep altimeter, altitude
am, amor love, liking amiable, amorous, enamoured
Anni, annu, enni year anniversary, annually, centennial
anthrop man anthropology, misanthrope, philanthropy
anti(co) old antique, antiquated, antiquity
arch chief, first, rule archangel, architect, archaic, monarchy, matriarchy, patriarchy, Archeozoic era
aster, astr star aster, asterisk, asteroid, astronomy,
aud, aus hear, listen audiology, auditorium, audio, audition, ausculate
aug, auc increase augur, augment, auction
auto, aut self automobile, autograph, automatic
belli war rebellion, belligerent, bellicose
bibl book Bible, bibliography, bibliomania
bio life biology, biometrics, biome, biosphere
brev short abbreviate, brief
cad, cas to fall cadaver, cadence, cascade
calor heat calorie, caloric, calorimeter
cap, cip, cept take capable, intercept, forceps, capture, reciprocate
capit, capt head decapitate, capital, captain, caption
carn flesh carnivorous, incarnate, reincarnation, carnal
caus, caut burn, heat caustic, cauldron, cauterize
cause, cuse, cus cause, motive because, excuse, accusation
ced, ceed, cede, cess move, yield, go, surrender procedure, proceed, cede, concede,
cenetri center concentric, centrifugal, centripetal,
chrom color chrome, chromosome, polychrome,
chron time chronology, chronometer,synchronize
cide, cise cut down, kill homicide, germicide, incision, scissors
cit call, start incite, citation, cite
civ citizen civic, civil, civilian, civilization
clam, claim cry out exclamation, clamor, proclamation, reclamation, acclaim
clud, clus, claus shut include, conclude, recluse, occlusion, occult
cognoac, gnosi know recognize, prognosis, cognoscenti,
cord, cor, cardi heart cordial, concord, discord, courage,
corp body corporation, corporal punishment,
cosm universe, world cosmos, microcosm, cosmopolitan, cosmonaut
crat, cracy rule autocrat, aristocrat, theocracy,
crea create creature, recreation, creation
cred believe creed, redence, credit, incredible
cresc, cret, crease, cru rise, grow crescendo, concrete, increase, 
crit separate, choose critical, criterion, hypocrite
cur, curs run current, concurrent, concur, incur,  
cura care curator, curative, manicure
cycl, cyclo wheel, circular Cyclops, unicycle, bicycle, cyclone,
deca ten decade, decathlon, decahedron
dem people democracy, demography, epidemic
dent, dont tooth dental, denture, orthodontist, 
derm skin hypodermic, dermatology, epidermis, taxidermy
dict say, speak dictation, dictionary, dictate, dictator, Dictaphone, edict, predict, verdict,
doc, dokein teach doctrine, indoctrinate, document, 
domin master dominate, dominion, predominant,
don give donate, condone
dorm sleep dormant, dormitory
dox opinion, praise orthodox, heterodox, paradox,
drome run, step syndrome (run together), hippodrome (place where horses run)
duc, duct lead induce, seduce (lead aside), produce, reduce
dura hard, lasting durable, duration, endure
dynam power dynamo, dynamic, dynamite,
endo within endorse, endocardial, endoskeletal, endoskeleton, endosperm
equi equal equinox, equilibrium, equipoise
erg work energy, erg, allergy, ergometer,
fac, fact, fic, fect do, make factory, fact, manufacture,confection
fall, fals deceive fallacy, falsify, fallacious
fer bear, carry ferry, coniferous, fertile, defer, irefer,
fid, fide, feder(is) faith, trust confidante, fidelity, confident, infidelity, infidel, federal, confederacy, semper fi
fila, fili thread filigree, filament, filter, filet, filibuster
fin end, ended, finished final, finite, finish, confine, fine, refine, define, finale
fix fix fix, fixation, fixture, affix, prefix, suffix
flex, flect bend flex, reflex, flexible, flexor, inflexibility, reflect, deflect
flu, fluc, fluv flowing influence, fluid, flue, flush, fluently,
form form, shape form, uniform, conform, perform, formal, formula
fort, forc strong fort, fortress, fortify, forte, fortitude
fract, frag break fracture, infraction, fragile, fraction, 
gam marriage bigamy, monogamy, polygamy
gastr (o) stomach gastric, gastronomic, gastritis,
gen birth, race, produce genesis, genealogy, generate, genetic, 
geo earth geometry, geography, geocentric,
germ vital part germination, germ, germane
gest carry, bear congest, gestation
gloss, glot tongue glossary, polyglot, epiglottis
glu, glo lump, bond, glue glue, agglutinate, conglomerate
grad, gress step, go grade, gradual, graduate, progress, graduated, egress
graph, gram write, written graph, graphic, autograph, telegram
grat pleasing congratulate, gratuity, grateful,
grav heavy, weighty grave, gravity, aggravate, gravitate
greg herd gregarious, congregation, segregate, gregarian
hypn sleep hypnosis, hypnotherapy
helio sun heliograph, heliotrope, heliocentric
hema, hemo blood hemorrhage, hemoglobin, hemophilia, hemostat
here, hes stick adhere, cohere, cohesion, inherent,
hetero different heterogeneous, heterosexual,
homo same homogeneous, homonym
hum, human earth, ground, man humus, exhume, humane
hydr, hydra, hydro water dehydrate, hydrant, hydraulic,
ignis fire ignite, igneous, ignition
ject throw deject, inject, project, eject, interject
join, junct join adjoining, juncture, conjunction, 
juven young juvenile, rejuvenate
lau, lav, lot, lut wash launder, lavatory, lotion, ablution,
leg law legal, legislate, legislature, legitimize
levi light alleviate, levitate, levity
liber, liver free liberty, liberal, liberalize, deliverance
liter letters literary, literature, literal, alliteration,
loc, loco place locality, allocate, locomotion
log, logo, ology word, study, speech catalog, prologue, dialogue, zoology
loqu, locut talk, speak eloquent, loquacious, colloquial, circumlocution
luc, lum, lus, lun light translucent, luminary, luster, luna
macr-, macer lean emaciated, meager
magn great magnify, magnificent, magnanimous, magnate, magnitude, magnum
man hand manual, manage, manufacture, manicure, manifest, maneuver,
mand command mandatory, remand, mandate
mania madness mania, maniac, kleptomania,
mar, mari, mer sea, pool marine, marsh, maritime, mermaid
matri mother matrimony, maternal, matriarchate,
medi half, middle, between, halfway mediate, medieval, Mediterranean,
mega great megaphone, megalopolis, megaton
mem remember memo, commemoration, memento, memorable
meter measure meter, barometer, thermometer
micro small microscope, microfilm, microwave,
migra wander migrate, emigrant, immigrate
mit, miss send emit, remit, submit, admit, commit
mob, mot, mov move mobile, motionless, motor
mon warn, remind monument, admonition, monitor, 
mor, mort mortal, death mortal, immortal, mortality, mortician, mortuary
morph form amorphous,  metamorphosis,
multi many, much multifold, multilingual, multiped,
nat, nasc to be from, to spring forth innate, natal, native, renaissance
neo new Neolithic, neologism, neophyte,
neur nerve neuritis, neuropathic, neurologist,
nom law, order autonomy, astronomy, gastronomy,
nomen, nomin name nomenclature, nominate, ignominious
nov new novel, renovate, novice, nova,
nox, noc night nocturnal, equinox, noctilucent
numer number numeral, numeration, enumerate,
numisma coin numismatics
oligo few, little Oligocene, oligotrophic, oligarchy
omni all, every omnipotent, omniscient, omnipresent, omnivorous
onym name anonymous, pseudonym, antonym
oper work operate, cooperate, opus
ortho straight, correct orthodox, orthodontist, orthopedic,
pac peace pacifist, pacify, pacific ocean
paleo old Paleozoic, Paleolithic,
pan all Pan-American, panacea,
pater, patr father paternity, patriarch, patriot, patron,
path, pathy feeling, suffering pathos, sympathy, antipathy, apathy telepathy
ped, pod foot pedal, impede, pedestrian, centipede, tripod,  antipode
pedo child orthopedic, pedagogue, pediatrics
pel, puls drive, urge compel, dispel, expel, repel, propel, pulse, impulse, pulsate, compulsory, expulsion, repulsive
pend, pens, pond hang, weigh pendant, pendulum, suspend,
phage eat macrophage, bacteriophage
phil love philosophy, philanthropy, philharmonic, bibliophile
phlegma inflammation phlegm, phlegmatic
phobia, phobos fear phobia, claustrophobia, acrophobia, aquaphobia, ergophobia, homophobia
phon sound phonograph, phonetic, symphony, homophone, euphonious
photo light photograph, photoelectric, photogenic, photosynthesis
plac, plais please placid, placebo, placate, complacent
plu, plur, plus more plural, pluralist, plus
pneuma, pneumon breath pneumatic, pneumonia,
pod (see ped)   
poli city metropolis, police, politics, Indianapolis, megalopolis, acropolis
poly many polysaccharide, polyandrous, polytheistic
pon, pos, pound place, put postpone, component, opponent, proponent, expose, impose, deposit, posture, position, expound, impound
pop people population, populous, popular
port carry porter, portable, transport, report, export, import, support, transportation
portion part, share portion, proportion
pot power potential, potentate, impotent
prehendere seize, grasp apprehend, comprehend, comprehensive, prehensile
prim, prime first primacy, prima donna, primitive, primary, primal, primeval
proto first prototype, protocol, protagonist, protozoan, Proterozoic, protoindustrial
psych mind, soul psyche, psychiatry, psychology, psychosis
punct point, dot punctual, punctuation, puncture, acupuncture, punctuation
reg, recti straighten regiment, regular, rectify, correct, direct, rectangle
ri, ridi, risi laughter deride, ridicule, ridiculous, derision, risible
rog, roga ask prerogative, interrogation, derogatory
rupt break rupture, interrupt, abrupt, disrupt, ruptible
sacr, sanc, secr sacred sacred, sacrosanct, sanction, consecrate, desecrate
salv, salu safe, healthy salvation, salvage, salutation
sat, satis enough satient (giving pleasure, satisfying), saturate, satisfy
sci, scientia know science, conscious, omniscient, cognocienti
scope see, watch telescope, microscope, kaleidoscope, periscope, stethoscope
scrib, script write scribe, scribble, inscribe, describe, subscribe, prescribe, manuscript
sed, sess, sid sit sediment, session, obsession, possess, preside, president, reside, subside
sen old senior, senator, senile
senescere to grow old senescence, evanescent
sent, sens feel sentiment, consent, resent, dissent, sentimental, sense, sensation, sensitive, sensory, dissension
sequ, secu, sue follow sequence, consequence, sequel, subsequent, prosecute, consecutive, second, ensue, pursue
serv save, serve servant, service, subservient, servitude, preserve, conserve, reservation, deserve, conservation, observe
sign, signi sign, mark, seal signal, signature, design, insignia, significant
simil, simul like, resembling similar, assimilate, simulate, simulacrum, simultaneous
sist, sta, stit stand assist, persist, circumstance, stamina, status, state, static, stable, stationary, substitute
solus alone solo, soliloquy, solitaire, solitude
solv, solu loosen solvent, solve, absolve, resolve, soluble, solution, resolution, resolute, dissolute
somnus sleep insomnia, somnambulist
soph wise sophomore (wise fool), philosophy, sophisticated
spec, spect, spic look specimen, specific, spectator, spectacle, aspect, speculate, inspect, respect, prospect, retrospective, introspective, expect, conspicuous
sphere ball, sphere sphere, stratosphere, hemisphere, spheroid
spir breath spirit, conspire, inspire, aspire, expire, perspire, respiration
string, strict draw tight stringent, strict, restrict, constrict, boa constrictor
stru, struct build construe (build in the mind, interpret), structure, construct, instruct, obstruct, destruction, destroy
sume, sump take, use, waste consume, assume (to take, to use), sump pump presumption (to take or use before knowing all the facts
tact, tang, tag, tig, ting touch tactile, contact, intact, intangible, tangible, contagious, contiguous
tele far telephone, telegraph, telegram, telescope, television, telephoto, telecast, telepathy
tempo time tempo, temporary, extemporaneously, contemporary, pro tem, temporal
ten, tin, tain hold tenacious, tenant, tenure, untenable, detention, retentive, content, pertinent, continent, obstinate, contain, abstain, pertain, detain
tend, tent, tens stretch, strain tendency, extend, intend, contend, pretend, superintend, tender, extent, tension, pretense
terra earth terrain, terrarium, territory, terrestrial
test to bear witness testament, detest, testimony, attest
the, theo God, a god monotheism, polytheism, atheism, theology
therm heat thermometer, theorem, thermal, thermos bottle, thermostat, hypothermia
thesis, thet place, put antithesis, hypothesis, synthesis, epithet
tom cut atom (not cuttable), appendectomy, tonsillectomy, dichotomy, anatomy
tort, tors twist torture (twisting to inflict pain) retort, extort, distort, contort, torsion, tortuous, torturous
tox poison toxic, intoxicate, antitoxin
tract, tra draw, pull tractor, attract, subtract, tractable, abstract, subtrahend
tom cut atom (not cutable, smallest particle of matter), appendectomy, tonsillectomy, dichotomy, anatomy
tort, tors twist torture (twisting to inflict pain), retort, extort (twist out), distort, contort, torsion
tox poison toxic, intoxicate, antitoxin
tract, tra draw, pull tractor, attract, traction, subtract, tractable, abstract (to draw away), subtrahend (the number to be drawn away from another).
trib pay, bestow tribute, contribute, attribute, retribution, tributary
turbo disturb turbulent, disturb, turbid, turmoil
typ print type, prototype, typical, typography, typewriter, typology, typify
ultima last ultimate, ultimatum
umber, umbraticum shadow umbra, penumbra, (take) umbrage, adumbrate
uni one unicorn, unify, university, unanimous, universal
vac empty vacate, vacuum, evacuate, vacation, vacant, vacuous
vale, vali, valu strength, worth equivalent, valiant, validity, evaluate, value, valor
ven, vent come convene, intervene, venue, convenient, avenue, circumvent, invent, convent, venture, event, advent, prevent
ver, veri true very, aver, verdict, verity, verify, verisimilitude
vert, vers turn avert, divert, invert, introvert, convertible, reverse, controversy, versatile
vic, vicis change, substitute vicarious, vicar, vicissitude
vict, vinc conquer victor, evict, convict, convince, invincible
vid, vis see video, evident, provide, providence, visible, revise, supervise, vista, visit, vision
viv, vita, vivi alive, life revive, survive, vivid, vivacious, vitality, vivisection
voc call vocation, avocation, convocation, invocation, evoke, provoke, revoke, advocate, provocative, vocal
vol will malevolent, benevolent, volunteer, volition
volcan fire volcano, vulcanize, Vulcan
volvo turn about, roll revolve, voluble (easily turned about or around or talkative), voluminous, convolution
vor eat greedily voracious, carnivorous, herbivorous, omnivorous, devour
zo animal zoo (short for zoological garden), zoology, zoomorphism (attributing animal form to god), zodiac (circle of animal constellations), protozoan