Meaning of AD- in English

AD-

transcription, транскрипция: [ prefix ]

or ac- or af- or ag- or al- or ap- or as- or at-

Etymology: Middle English, from Anglo-French & Latin; Anglo-French, from Latin, from ad — more at at

1. : to : toward — usually ac- before c, k, or q

ac culturation

and af- before f

af fluent

and ag- before g

ag gradation

and al- before l

al literation

and ap- before p

ap portion

and as- before s

as suasive

and at- before t

at tune

and ad- before other sounds but sometimes ad- even before one of the listed consonants

ad sorb

2. : near : adjacent to — in this sense always in the form ad-

ad renal

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.