Lewis Short
(verb) : oggannĭo (obg-), īvi or ĭi, ītum, 4, ob-gannio
* To yelp, snarl, or growl at (ante- and post-class.): ogganniunt, Enn. ap. Non. 147, 11: quin centies eadem imperem atque ogganniam,Plaut. As. 2, 4, 16: habet haec se quod, dum vivat, usque ad aurem ogganiat,Ter. Phorm. 5, 9, 41: aliquid in aurem alicujus,App. M. 2, p. 115, 16.
Charlton T. Lewis, Charles Short, A Latin Dictionary