Lewis Short
(adjective) : ăsĭnīnus, a, um, asinus
* Of or produced by an ass: stercus,Varr. R. R. 1, 38, 2: pullus,ass's foal, a young ass,id. ib. 2, 8: pilus,Plin. 8, 21, 30, § 72, where Jan reads asini: pruna asinina cognominata a vilitate,id. 15, 13, 12, § 41.
Charlton T. Lewis, Charles Short, A Latin Dictionary