·adj Pertaining to, or becoming, a feast; festal; joyous; gay; mirthful; sportive.
festīvē, adv., v. festivus fin. ...
A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
fēstīvē adv. festivus, humorously, facetiously, wittily : agere fabellam: tradere eleme...
An Elementary Latin Dictionary