Great word and apparently an old one: Webster's 1913 Dictionary: • Dith`yram"bic (?), a. [L. dithyrambicus, Gr. ?: cf. F. dithyrambique.] Pertaining to, or re

Great word and apparently an old one: Webster's 1913 Dictionary: • Dith`yram"bic (?), a. [L. dithyrambicus, Gr. ?: cf. F. dithyrambique.] Pertaining to, or resembling, a dithyramb; wild and boisterous. "Dithyrambic sallies." Longfellow. -- n. A dithyrambic poem; a dithyramb. • Dith"yramb (?), n. [L. dithyrambus, Gr. ? a kind of lyric poetry in honor of Bacchus; also, a name of Bacchus; of unknown origin: cf. F. dithyrambe.] A kind of lyric poetry in honor of Bacchus, usually sung by a band of revelers to a flute accompaniment; hence, in general, a poem written in a wild irregular strain. Bentley.