Lewis Short
mĕthŏdĭum (noun 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.
Charlton T. Lewis, Charles Short, A Latin Dictionary