methodium

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

mĕthŏdĭum, ii, n., = μεθόδιον,

a witty conceit, a jest, joke (post-Aug.): Trimalchio ejusmodi methodio laetus, Carpe, inquit, etc. (al. metōdīum, i. e. μετωδεῖον, an inserted song ), Petr. 36, 5.