Common Prefixes, Roots, and Suffixes Word parts a, an ab able, ible ac acer, acr ad age al ambi an, ian ance, ancy, ence, ency ant, ent, er, or, eer, ier, ine ante anthropo anti aqua ar, ary, ory arch aud auto bene bibl bio brev cede, ceed chron cide circum cis clar co, con, com cogni Meaning without, none away (from) capable of characteristic of sour, bitter to, towards state of, rank, place relating to both belonging to act of, state of, condition of one who acts before man, mankind against, opposed water relating to chief, principal hear self well, good book life short go, move time killing around cut clear together, with know Examples atypical absent portable, edible cardiac acerbity, acrid adhere marriage annual ambivalent suburban, mammalian assistance, discrepancy, dependence, dependency clairvoyant, dependent, farmer, sailor, auctioneer, gondolier, heroine anteroom anthropoid antipathy aquatic similar, imaginary, sensory archenemy auditory automatic beneficial bible biography brevity recede, proceed chronological pesticide circumference excise clarity cooperate, conspiracy recognise Word Parts counter, contra cred crypt cycl de dent derm dia dic, dict dis dom dox duc, duct dyna dys ee ego en epi ese eu ex extra fort frater fy gamy gen geo graph, gram gress gyn hetero homo, homeo hydr hyper hypo ic, ical il, im, in, ir Meaning against, opposite believe secret, hidden circle from, away tooth skin through, apart say apart, from, out, opposite of state, domain of, condition praise, belief lead power hard, ill, with difficulty person who is I, self to make, become on, outer relating to well, good out, from beyond, outside strong brother to make marriage race, origin, kind earth write go, move woman other, different same, like, similar water excessive, over, above, beyond under, below, beneath of, like in, into, on, within, not opposing Examples counteract, contrary credential cryptic cyclical depart dentist dermatitis diagonal dictate distract kingdom orthodox aqueduct dynamic dyslexia employee egoist shorten epigram journalese euphemism exhale extracurricular fortress fraternity fortify monogamy Genesis geography graphology, telegram progress gynephobia heterogeneous homogeneous, homeopathic hydroplane hyperactive hypodermic manic, numerical infiltrate, immigrate Word Parts inter intra ion, sion, tion ish ism ist junct less logy macro magn mal man mater mega ment meter, metr micro mis mis, miso miss, mit morph mort multi nav neb non nym omni ortho pan para pater path ped, pod pel per peri phil phobia phon photo poly Meaning between within state of, condition of, act of like doctrine, practice of person who join without study of large large, great bad hand mother big state of being measure small wrong, ill hatred send form, shape death many ship, sail hazy, cloudy not name all straight, right all beside father feeling, suffering food push, drive through, completely around love, like fear sound light many Examples interfere intrastate tension childish plagiarism dentist conjunction careless biology macrocosm magnify malpractice manicure maternity megaphone improvement thermometer microscope misinform misanthrope, misogyny missile, transmit amorphous mortality multitude naval nebulous nonadjustable pseudonym omnipotent orthopedic pandemonium parallel paternal apathy pedal, tripod propel perforate perimeter philanthropy claustrophobia phonics Photostat polygamy Word Parts pon, pos port post pot pre pseudo psych pyr re rupt scrib, script scop se sect semi simil soph spect sub super syn, sym tech tele ten tend terra the therm tort trans tude ultra un under viv voc vor Meaning place carry after strength, ability before false mind, soul fire back, again break write see, look away from cut half like wise see, look under over, above with, together art, skill far hold stretch earth god heat twist across quality, state, result beyond, excessively not, opposing, reverse below, beneath life voice, call eat Examples opponent, position porter postpone potential preamble pseudonym psychology pyromania return rupture transcribe, scripture telescope seclude, segregate dissect semiprivate similar sophomore spectator submarine supersonic synchronize, symphony technology telephone tenacity extend terrier, terrace atheist thermal contort transport servitude ultramodern unlawful underground vivacious vocal, vocation omnivorous Prefixes of Numbers Word Parts mono uni du, duo bi tri quad tetra penta quint hex sex sept oct nov dec cent hect kil mil demi hemi semi Meaning one one two two three four four five five six six seven eight nine ten hundred hundred thousand thousand half half half Example monologue uniform duet biped triangle quadruplets tetrameter pentagon quintet hexagon sixtuplets septuplets octopus novena decade percent hectogram kilowatt millimeter demitasse hemisphere semicircle