a-

Def: Without

- amoral, atheist, atypical, anonymous, apathy, atrophy, anomaly, agnostic

ab-/abs-

Def: off, away from, apart, down

- abduct, abhor, abolishm abstract, abnormal, abdicate, abstinence, abstruse

ac-/acr- 

Def: sharp, bitter

- acid, acute, acerbic, acrid, acrimonious, exacerbate

act/ag(-)/iga

Def: to do, to drive, to force, to lead

- agile, agitate, litigate, prodigal, pedagogue, synagogue 

ad-/al-

Def: to, toward, near

- adapt, adjacent, addict, admire, address, adhere, adjoin, advocate

al-/ali-/alter-

Def: other, another

- alternative, alias, alibi, alien, alter ego, altruist, allegory

(am)-

Def: love, (highly agreeable)

- amateur, amatory, amenity, amorous, enamored, amity, inamorate, amiable, amicable

amb-

Def: to go/(start with direction), to walk

- ambient, ambitious, preamble, ambassador, ambulance, ambulatory, ambush, perambulator

ambi-/amph-

Def: Both, more than one, around (-ish)

- ambiguous, amphibian, ambidextrous

anim(-)

Def: of the life, mind, soul, spirit, =(feelings)

- unanimous, animosity, animus, equanimity, maganimous

annui/enni

Def: year

- annual, anniversary, annuity, perennial, annals

ante-

Def: before

- anteior, antecedent, antedate, antebellum, antediluvian

anthro/andr

Def: man, human

- anthropology, android, misanthrope, philanderer, androgynous, androgen, anthropocentric

anti-

Def: against, (opposite/not)

- antibody, antidote, antiseptic, antipathy, antipodal

apo-

Def: away (from)

- apology, apostle, apocalypse, apogee, apocryphal, apostasy

arch(-)/archi/(-)archy

Def: chief, principle, ruler

- architect, archenemy, monarchy, anarchy, oligarchy

auto

def: self

- automatic, autocrat, autonomy

be-

Def: have particular quality, to exist (for the purpose of)

- belittle, bemoan, bewilder, belie

ben-/bon-/ben(e)- 

Def: good

- benefit, benign, benediction, benevolent, bonus, bona fide

bi-

Def: twice, double

- binocular, biennial, bilateral, bilingual, bipartisan