Lewis Short
barrĭo, īre
* V. n [id.], to cry; of elephants. barrire elephantes dicuntur, sicut oves dicimus balare, utique a sono ipso vo cis: elephanti barriunt, ranae coaxant, equi hinniunt,Spart. Get 5, 5; Auct. Carm. Phil. 53; cf. Paul. ex Fest p. 30 Müll.
Charlton T. Lewis, Charles Short, A Latin Dictionary