Lewis Short
(interjection) : băbae or păpae, , = βαβαί or παπαί, an exclamation of wonder and joy
* Odds bodkins! wonderful! strange!
* Form babae: huic babae! basilice te intulisti et facete,Plaut. Pers. 5, 2, 25; so id. Ps. 1, 3, 131; id. Cas. 5, 2, 26; id. Ep. 1, 1, 52; v. under II.; Petr. 37, 9.
* Form papae: Ep. Cadum tibi veteris vini propino. St. Papae! Plaut. Stich. 3, 1, 24; 5, 7, 3; id. Rud. 5, 2, 33; id. Bacch. 2, 2, 29; id. Men. 5, 5, 20; Ter Eun. 2, 1, 23; 2, 2, 48; 3, 1, 26.
Charlton T. Lewis, Charles Short, A Latin Dictionary