Most Common Roots, Prefixes, & Suffixes Word Part ab acer (acid) acro acu aer agri alb amb ambul amic anim ann (enn) ante anthro anti (ant) aqu arbor arche (archi) arthr astro audi Meaning away bitter, sour top, height sharp air, atmosphere farming white around, both walk, move friendly life, living year before human against, opposite water tree primitive, origin joint star hearing, sound Examples absent, abduct, abnormal, abort acerb, acerbate, acidity acrobat, acronym, acrophobia acute, acupressure, acupuncture, acuity aerosol, aeroplane agriculture, agrarian albino, albumen, albacore ambient, ambiguous, amble amble, ambulance, ambulant amicable, amicably, dynamic animal, animate, equanimity anniversary, annual, millennium antemortem, antebellum anthropology, philanthropist antagonist, antidote, antibiotics aquarium, aquifer arborist, harbored, arborize archaic, archaeology, archive arthroscope, arthritis, arthropod astronaut, astronomy, astrogate auditory, auditorium, audience auto avi bel bene bi biblio bio blast bon cap capt (cept) cardi cata caust (caut) cede (cess, ced) ceive cent cerebr cert chron cide circum clam (claim) clar clud (clus) clin (cline) co cog self autopilot, autonomous, automatic bird aviator, aviary, aviatrix war, fight rebel, antebellum good benefit, benign, benevolent, benefactor two bicycle, biceps, biscotti, biweekly book bibliography, bibliophile life biology, biological, biography cell, primitive blastula, fibroblast, blastoderm good bonus, bonanza head capital, decapitate, captain take hold of captivate, intercept, capture heart cardiac, cardiologist, cardiovascular intensive, according to cataclysm, catastrophic, catalog to burn cauterize, holocaust go, withdraw recede, exceed, recession take receive, perceive, reconceive hundred centennial, century, percent brain cerebral, cerebrate sure certain, ascertain, certify time chronicle, chronology kill genocide, pesticide around circumference, circumstance shout, speak exclaim, clamor, proclaim clear clarify, clarification, declare close conclusion, seclude, conclude lean inclination, incline, recline with, together, joint coauthor, cosign, collaborate, cooperate know cognitive, incognito, cognition con contra corp cosm counter cracy (crat) cred crypt culp cumul cycle dec (deka) dem dent derma di dia dic (dict) domin don dorm dur dyn ego ence (ance) endo esth (aesth) ethn together, common connect, convention, concur against contraband, contrary body corporation, corpse, corporal world cosmic, microcosm opposing, contrary counteract, counterintuitive, counteroffer government, authority democracy, democrat, theocracy, bureaucracy believe incredible, credit, credulous, credence hidden, secret cryptic, encrypt blame, fault culpable, exculpate, culprit mass, heap accumulate, cumulative circle bicycle, cyclone, cyclist ten decade, decimal. decathlon people democracy, demographics tooth dentist, dentistry, dentifrice skin dermatologist, hypodermic, dermatitis, pachyderm twice, two dilemma, diverse, dioxide across, through dialogue, diameter, diagnosis speak dictate, dictator, contradict master dominate, predominate, dominerring give donate, pardon, donor sleep dormitory, dormant, dormer harden, long lasting durable, duration, endure power, energy dynamite, dynamic self egotistical, egomania state, condition performance, conference, insurance within, inside endocrine, endometrial beauty, feeling esthetician, aesthetic, kinesthesia nation, race ethnicity, ethnology, ethnocentric eu ex extra fac famil femin fend (fens) fer fid flect (flex) foli fore fract (frag) fug fum fusc gen geo ger giga gon grad (gress) gram graph grat grav (griev) gymn gyn good, well out, former beyond make, do a close attendant woman strike carry, bring trust bend leaf in front of, previous to break flee, escape smoke dark family, born earth old age A billion angle to step, to go writing write pleasing heavy bare woman euphemism, euphoria exit, ex-girlfriend, exterminate, extract extraordinary, extraterrestrial, extravagance artifact, factory, factor, malefactor family, familiar feminism, feminine offend, offense, defend, defense transfer, ferry, conifer, confer confidence, fidelity reflect, flexible, inflect, deflect foliage, defoliant before, therefore, forebode, forecast fracture, fragment, fraction refugee, fugitive, refuge fumes, fumigation obfuscation, infuscate, subfuscous, fuscous genetics, generation, gender, gene geography, geology geriatrics, gerontology gigabyte, gigawatt polygon, decagon, octagon, hexagon digress, gradual, graduate grammar, grammatically paragraph, autograph gratification, gratitude, grateful gravity, grave, aggravate, greive gymnast, gymnastics, gymnosperm gynecology, androgynous, misogyny hab (hib) helio hemo hepa herbi hex hiero histo homo (homeo) hosp host hydra hyper hypno hypo ian iatr icon ideo idio in (il) infra init inter ir iso ject jud have sun blood liver grass, plant six sacred, holy tissue same, alike guest enemy, stranger water over, beyond sleep under related to medical care image idea peculiar, distinct not beneath to begin or enter between not equal throw, push law habit, habitual, prohibition, exhibit heliograph, heliometer, perihelion hemorrhage, hemoglobin, hemophiliac hepatitis, hepatoma, hepatotoxic herbivore, herbicide, herbal hexagon, hexapod, hexameter hierarchy, hieroglyphics histology, histogenesis, histochemical homogeneous, homonym, homeopath hospital, hospice, hospitable hostage, hostile hydrate, hydraulic hyperactive, hyperventilate hypnotic, hypnosis hypothermic, hypothesis, hypoglycemia librarian, historian, pedestrian geriatrics, pediatrics, podiatrist iconic, iconology ideology, ideologue, ideologic idiotic, idiomatic incapable, incomplete, informal, illegal, illogical infrastructure, infrared initiate, initiation, initiative, initial interview, international, interstate irrational, irredeemable, irrelevant, irregular, irresponsible isobar, isometric eject, reject, interject judicial, judge, judgement junct juven kilo kine lab lat later laud lax less lev lex liber lingu lipo lith (lite, ite) liter loc locu (loqu) log (logy) longus luc lud (lus) lumin macro maj mal man join young thousand movement work broad, wide side praise not tense without lift word, law free language fat mineral, rock, fossil letter place speak study, speech long light to play, display light large, great greater bad, evil hand conjunction, junction, disjunctions juvenile, rejuvenate kilobyte, kilometer, kilogram telekinesis, kinetic, kinesthetic elaborate, laboratory, laborious, labor, collaborate dilate, latitude bilateral, unilateral laudably, applause, applaud relax, relaxation, laxness, laxative homeless, useless, wireless, restless elevator, levitate, level lexicology, dyslexic, alexia liberty, liberate, libertine bilingual, linguistics, linguist liposuction, lipase appatite, granite, monolith alliteration, literate, literal, literacy location, discolate, relocate loquacious, eloquent logic, dialogue, monologue longevity, longitude elucidate, lucid, translucent prelude, illusion, delude, allude illumination, illuminate, luminol, lumen macroeconomics, macronutrients, macroevolution majority, majesty, major malice, maltreat, malfeasance manicure, manual, manager, maneuver mand mania mar mater (matr) max medi mega melan memor merge meso meta meter micro mid migr milli min mir mis miss (mit) mob mon mort mot (mov) multi mut my to order mandate, mandatory, command, demand madness, excessiveness egomania, maniac, hypermania sea marine, marina, maritime, aquamarine mother maternity, maternal, matriarch, matrimony greatest maximum, maximize middle mediocre, medium, medieval large megaphone, megastructure, megadose black, dark melancholy, melanoma, melodrama remember commemorate, memory, memorial dip, dive immerge, submerge middle Mesoamerica, meson change, beyond, aftermetaphysics, metamorphosis, metastasis measure diameter, thermometer small microscope, micronutrient middle midway, midterm, midpoint, midweek move immigrant, emigrate, migrant, migration one thousandth millimeter, millibar, millileter small minimum, miniature, mini-mart, minute amazement miraculous, mirage wrong, bad mistake, misprint, misinterpret, misbehave send, cast remit, dismiss, missle, emit move mobilize, immobilize, mobility warn summon, admonish, premonition, monitor death mortuary, immortal, mortify move motion, motivate, remove, moveable many multicultural, multigrain, multimedia, multicolored to change mutate, mutation muscle myocardium, myosin, myasthenia narr nat naut neg neur neo nomin non not noun nov null numer ob (op) oct ocu omni ono (onym) opt ortho osteo ous out over oxy paleo pan para tell narrator, narration, narrative born innate, natural, natal ship nautical, astronaut, argonaut no negate, negative, renege nerve neuralgia, neurologist, nerves, neurotic new neophyte, neonatal, neologistic, neocolonialism to name nominate, misnomer, nominal, nomination not nonviolent, nonstop, nonrefundable note, paper notable, noteworthy declare announce, denounce, announcement new novice, renovate, novelty none nullify, nullification, nulliparity number numeral, numerical, enumerate, numerous in the way, against object, objection, opposition, obscure eight octopus, octagon, octave eye, sight oculist, binoculars, monocula all omnipotent, omniscient, omnivorous name onomatopoeia, anonymous, acronym best optimal, optimum, optimize straight orthodontist, orthopedic bone osteoporosis, osteoarthritis having adventurous, hazardous, nauseous, joyous beyond, surpass, exceed outgoing, outdoor, outside, outlive excessive overconfident, overstock, overexcited, overrun sharp oxymoron, oxidize ancient paleontologist, Paleolithic, paleography all pandemic, panorama, pantheon, panacea beside, related parallel, parasite, paramedic path pel (puls) ped penta per peri phag phil phob phon photo phyt pneu poli (polis) pop port pos post pre psuedo psyche pugn (pung) pul purg pyr quad quin radic (radix) feeling, disease drive, push foot, kid five through around to eat loving fear sound light plant, to grow air, breath city people carry put, place after before FALSE mind, spirit to fight urge clean fire four five root pathogen, sympathetic, psychopath dispel, repulse, compel, compulsion pedestrian, pedometer, pediatrician pentagon, pentagram, pentathlon perception, perceive perimeter, peripheral esophagus, sarcophagi philanthropic, philosophy hydrophobia, phobia, claustrophobic telephone, saxophone, microphone photograph, photogenic, photosynthesis hydrophyte, neophyte pneumonia, pneumatic metropolis, cosmopolitan population, popular portable, deport, portal position, compose, deposit posterior, postpone, postmortem prevent, predetermined, precaution, preview pseudonym, pseudoscience psychology, psychic pugnacious, repugnant, pungent compulsion, impulsive, expulsion purge, purgatory, expurgate pyromaniac, pyrogen quadruple, quadrant, quadriplegic quints, quintessence eradicate, radical, radish re reg retro rhod rid rub rupt san scend sci scop scrib se sect sed self semi sens serv sol son soph spect sphere spir sta stell sub again guide, rules back, backward red laugh red burst health climb, go to know see, look write apart cut sit of, for, by itself half feel to save or keep comfort sound wise see ball breathe stand star below, under rebuild, renew, restart, reflect regulate, regular, regent, regime retroactive, retrospect, retrograde rhodopsin, cynorrhodon, rhodamine ridicule, ridiculous ruby, rubella, bilirubin rupture, disrupt, interrupt, erupt sane, sanity, insane, sanitation ascend, crescendo, descent science, conscience, conscious, omniscient telescope, microscope scribe, prescribe, inscribe, describe secede, seclude, serum dissect, intersect, section sediment, sedentary self-respect, self-control, selfish, selfless semicircle, semicolon, semifinal sensitive, consent, sentimental conservation, reserve, preserve consolation, solace consonant, supersonic philosophy, sophisticated, sophism spectator, spectacles, inspect biosphere, hemisphere respiratory, inspirational stable, stability, stagnant, stationary interstellar, constellation, stellar submarine, subpar super syn (sym) tact tax techn (techno) tele temp term tetra theo (the) tort tox tract trans ultra un uni urb vac ven vic (vin) vid (vis) voc vor (vour) xen zoo higher in quality or quantity superior, supernatural, superfan, superb with, together synonym, sympathy to touch contact, tactile arrangement syntax, taxonomy, ataxia art, skill technologic, technique far television, telephone, telescope time contemporary, temporary, tempo end, limit determine, terminate, exterminate, midterm four tetrapod, tetrarchy god theology, monotheism twist contort, distort, retort poison toxin, detoxification, toxicology, toxic, intoxicated pull tractor, subtract, attract, contraction across, through transform, transaction, translate, transport beyond, extreme ultrasonic, ultramodern not unfair, unable, unfriendly, uncontrollable one unicycle, united, unison city suburb, urban, urbanology empty vacuum, vacant, evacuate come venue, invent, preventative to win victory, convince, invincible see video, visual, video, visible call vocalize, vocal eat devour, voracious, carnivore, herbivore foreign xenocide, xenophobic, xenophile animal zookeeper, zoology