[ad.verb] n [ME adverbe, fr. MF, fr. L adverbium, fr. ad- + verbum word--more at word] (14c): a word belonging to one of the major form classes in any of numerous languages, typically serving as a modifier of a verb, an adjective, another adverb, a preposition, a phrase, a clause, or a sentence, expressing some relation of manner or quality, place, time, degree, number, cause, opposition, affirmation, or denial, and in English also serving to connect and to express comment on clause content--compare adjunct, conjunct, disjunct
[2]adverb adj (1879): adverbial