I. ˈad-ˌvərb noun
Etymology: Middle English adverbe, from Middle French, from Latin adverbium, from ad- + verbum word — more at word
Date: 14th century
: 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
II. adjective
Date: 1879
: adverbial