adverb (n.) Look up adverb at Dictionary.com
late 14c., from Late Latin adverbium "adverb," literally "that which is added to a verb" (to extend or limit its meaning), from ad- "to" (see ad-) + verbum "verb, word" (from PIE root *were- (3) "to speak;" see verb). Coined by Flavius Sosipater Charisius as a translation of Greek epirrhema "adverb," from epi- "upon, on" + rhema "verb."