Lewis Short
ŏnŏcentaurus (noun M) = ὀνοκένταυρος:
* An ass-centaur, a fabulous animal, Isid. Orig. 11, 3, 39: et occurrent daemonia onocentauris,Vulg. Isa. 34, 14.—Transf., of an impure person, Hier. in Isa. 6, 13, 22.
Charlton T. Lewis, Charles Short, A Latin Dictionary