Greek and Latin roots in English_A

Root Meaning in English Origin language Etymology (root origin) English examples
ab-, a-, abs-, au- away from Latin ab abnormal, abrasion, absent, abstain, abstraction, auference, aversion
acer-, acri- bitter, sharp, sour Latin acer (acris), acerbus, acere acerbic, acrid, acrimony, exacerbate
acet- sour, vinegar Latin acetum acetate, acetic, acetone, acetum
acid- acidic, sour Latin acidus acidiferous, acidifiant, acidity, acidosis, acidulation
acr-, acro- height, summit, tip Greek ἄκρος (akros) "high", "extreme" acrobatics, acromegaly, acronym, acrophobia, acropolis
acu-, acut- sharp, pointed Latin acutus, past participle of acuere "to sharpen", from acus "needle" accurate, acerose, acupuncture, acute, acutifoliate
ad-, a-, ac-, af-, ag-, al-, am-, an-, ap-, ar-, as-, at- movement to or toward; in addition to Latin ad "to", "toward" accept, adapt, affect, agglomerate, aggrandize, aggregate, aggression, annectent, approximate, ascend
adip- fat Latin adeps, adipis "fat" adipocellular, adipose
aero- air, atmosphere Greek ἀήρ (aēr) "air" aerie, aeriferous, aerobic, aerodynamic, aeronautics, aeroplane, aerorrhachia, aerosol, aerotitis
aesthet- feeling, sensation Greek αἰσθητικός (aisthētikos) "of sense perception" from αἰσθάνεσθαι (aisthanesthai) "to perceive" aesthetics, anaesthetic
aether-, ether- upper pure, bright air Latin aether ether, ethereal
aev-, ev- age Latin aevum age, coeval, eon, eternal, longevity, medieval, primeval
ag-, -ig-, act- do, go, move Latin agere, actus act, action, agenda, agent, agile, agitate, ambiguous, castigate, cogent, cogitate, cogitation, excogitate, mitigate, navigate
ag-, -agogue lead Greek ἄγειν (agein) (cognate with Latin agere) agony, antagonist, antagonize, demagogue, pedagogue, pedagogy, stragegy, synagogue
agri-, -egri- field Latin ager, agris "field, country" agriculture, peregrine
agro- field Greek ἀγρός (agros) "field" agroforestry, agronomy
alac- cheerful Latin alacer alacrity, allegro
alb- dull white Latin albus albedo, albino, albumen
alg- pain Greek algos analgesic, arthralgia, neuralgia
ali-, alter- other Latin alius alias, alibi, alien, alter, alternate, altruism
alt- high, deep Latin altus, altitudo altimeter, altitude
am-, amat- love, liking Latin amāre, amatus, amor amateur, amatory, amenity, amoration, amorous, enamoured
ami-, amic-, imic- friend Latin amicus amiable, amicable, amity, enemy, enmity, inimical
ambi-, am-, amb-, ambo-, an- both, on both sides Latin ambi ambidexterity, ambient, ambiguous, ambit, ambition, ambivalent, amboceptor, amputation, ancipital, andante
ambul- to walk Latin ambulare ambulance, ambulatory, preamble
amph-, amphi- both, on both sides of, both kinds Greek ἀμφί (amphi) "on both sides" amphibian, amphibolic, amphoterism
ampl- ample, abundant, bountiful, large Latin amplus ample, amplify, amplitude
an-, a-, am-, ar- not, without Greek Greek ἀν-/ἀ- "not" anaerobic, anhydrous, ambrosia, arrhythmia, atheism, atypical
ana-, am-, an- again, against, back, up Greek ἀνά (ana) anabaptist, anaphylaxis, anarrhexis, anion, anode
andr- male, masculine Greek ἀνήρ (anér) androgen, android, polyandrous, polyandry
anem-, anemo- wind Greek ἄνεμος (anemos) anemometer
anim- breath, life, spirit Latin anima "breath" animal, animation
ann-, -enn- year, yearly Latin annus "year" anniversary, annual, centennial, millennium, perennial
ant-, anti- against, opposed to, preventive Greek ἀντί (anti) "against" antagonist, antagonize, antibiotic, antipodes, antirrhinum
ante-, anti- before, in front of, prior to; old Latin ante "before", "against"; see also antiquus "old" antebellum, antediluvian, anticipate, antiquarian, antiquated, antique, antiquity
anth-, antho- flower Greek ἄνθος (anthos) "flower" anther, anthology
anthrac- coal Greek ἄνθραξ (anthraks) anthracycline, anthracite, anthrax,
anthrop-, anthropo- human Greek ἄνθρωπος (anthropos) "man" anthropology, anthropomorphic, misanthrope, philanthropy
ap-, apo- away from, separate, at the farthest point Greek ἀπό (apo) "from, away, un-, quite" aphelion, apocrine, apocryphal, apogee, apostasy, apostate, aporrhinosis
aper- open Latin aperire aperture, overt, overture
aqu-, aqua-, aque-, aqui- water Latin aqua aquamarine, aquarium, aqueduct, aquifer
ara- plow, till Latin ărāre arable
arbit- judge Latin arbiter (from ad "to" + baetere "to come, go") arbiter, arbitrage, arbitrary, arbitration
arcan- box Latin arcanus arcane, arcanum
arch-, arche-, archi- ruler Greek ἀρχή (archē) "rule" (in compounds: ἀρχε-, ἀρχι-) anarchy, archangel, archetype, architect, autarchy, monarchy, matriarchy, patriarchy, oligarchy
archae-, arche- ancient Greek ἀρχαῖος (arkhaios) "ancient" from arkhē "beginning" archaeology, archaic, archaism
arct- Relating to the North Pole or the region near it; relating to cold Greek ἄρκτος (arktos) "bear" Arctic Ocean
ard- heat, glow, passion Latin ardere "to burn" ardent, ardor, arson
ardu- difficult Latin arduus "high, steep" arduous
argent- silver Latin argentum argent, Argentina
areta- virtue Greek ἀρετή (aretē) aretaic
arid- be dry Latin ārēre "be dry or parched" arid
arist- excellence Greek ἄριστος (aristos) aristocracy
art- art Latin ars, artis artist, artillery, artisan, inert, inertia
arthr- joint Greek ἄρθρον (arthron) arthritis, arthropod
asper- rough Latin asper "rough" asperity, exasperate
aster-, astr- star, star-shaped Greek ἄστρον (astron) "star" aster, asterisk, asteroid, astrology, astronomy, astronaut
athl- prize Greek ἄθλος (athlos) "contest, feat" athlete, triathlon, pentathlon
-athroid- gathered or lumped together Greek αθροίζω (athroidzo) "I gather together" hypoathroid, epiathroid
auda- daring Latin audax "brave, bold, daring", from audere "to dare" audacious, audacity
audi- hearing, listening, sound Latin audire "to hear" audible, audio, audiology, audition, auditorium, auditory
aug-, auct- grow, increase Latin augēre, auctus "to increase" auction, augend, augment, augmentation, augur, augury, august, author, auxiliary, inauguration
aur- relating to gold, or gold-colored Latin aurum "gold" aureate, aureole
auri-, aus- relating to the ear Latin auris "ear" auricle, aurinasal, auscultate, auscultation
aut-, auto-, autor- self; directed from within Greek αὐτός (autos) "self", "same" autarchy, autocracy, autograph, automatic, automobile, autonomy
avi-, au- bird Latin avis auspice, auspicious, avian, aviary, aviation,
axi- axis Latin axis axis, axisymmetry
axi(o)- merit Greek ἄξιος (axios) "worth" axiology, axiom