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ad-(word root) to, towardExamples of words with the root ad-: advent, adversead-pref.1. or ac- or af- or ag- or al- or ap- or as- or at- Toward; to. Before c, f, g, k, l, p, q, s, and t, ad- is usually assimilated to ac-, af-, ag-, ac-, al-, ap-, ac-, as-, and at-, respectively.2. Near; at: adrenal. [Latin, from ad, to; see ad- in Indo-European roots.]ad- prefix 1. to; towards: adsorb; adverb. 2. near; next to: adrenal. [from Latin: to, towards. As a prefix in words of Latin origin, ad- became ac-, af-, ag-, al-, an-, acq-, ar-, as-, and at- before c, f, g, l, n, q, r, s, and t, and became a- before gn, sc, sp, st]ad1 (æd) n. 1. an advertisement. 2. advertising: an ad agency. [1835–45; by shortening] ad2 (æd) n. Tennis. advantage (def. 4). [1925–30; by shortening] ad- a prefix occurring in verbs or verbal derivatives borrowed from Latin, where it meant “toward” and indicated direction, tendency, or addition: adjoin. For variants before a following consonant, see a-5, ac-, af-, ag-, al-, an-2, ap-1, ar-, as-, at-. [< Latin ad, ad- (preposition and prefix) to, toward, at, about; c. at1] -ad1 , 1. a suffix occurring in loanwords from Greek denoting a group or unit comprising a certain number, sometimes of years: myriad; Olympiad; triad. 2. a suffix meaning “derived from,” “related to,” “associated with,” occurring in loanwords from Greek (dryad; oread) and in New Latin coinages on a Greek model (bromeliad; cycad). 3. a suffix used, on the model of Iliad, in the names of epics, speeches, etc., derived from proper names: Dunciad; jeremiad. [< Greek -ad-, s. of -as] -ad2 , var. of -ade1: ballad; salad.-ad3 , a suffix used in anatomy to form adverbs from nouns signifying parts of the body, denoting a direction toward that part: ectad.[< Latin ad toward, anomalously suffixed to the noun] A.D. or AD, 1. in the year of the Lord; since Christ was born: Charlemagne was born in a.d.742. (Latin annō Dominī] 2. assembly district. 3. athletic director. usage: The abbreviation a.d. was orig. placed before a date and is still usu. preferred in edited writing: The Roman conquest of Britain began in a.d.43 (or, sometimes, began a.d.43). The abbreviation b.c. (before Christ) is always placed after a date: Caesar was assassinated in 44 b.c. But by analogy with the position of b.c., a.d. is frequently found after the date in all types of writing: Claudius I lived from 10 b.c.to 54 a.d. This abbreviation may also designate centuries, being placed after the century specified: the second century a.d. Some writers prefer to use c.e. (Common Era) and b.c.e. (Before the Common Era) to avoid the religious overtones of a.d. and b.c. EncyclopediaSeeal-ad-
ad- (ad), Do not confuse words formed with this prefix and words formed with the prefix ab-.Prefix denoting increase, adherence, to, toward; near; very. [L. ad, to, toward;] ad- A Latin root for toward, to (e.g., adventure).ad- Prefix denoting increase, adherence, to, toward; near; very. [L. ad, to, toward;]ad- Prefix denoting to, towards.ad- prefix denoting to, next to.ad- Do not confuse words formed with this prefix and words formed with the prefix ab-.Prefix denoting increase, adherence, to, toward; near; very. [L. ad, to, toward;]FinancialSeeADThesaurusSeead |