Lewis Short
(adjective) : armentīcĭus (better, -tĭus), a, um, id.
* Of or relating to a herd of cattle (perh. only in Varr.): pecus,Varr. R. R. 2, 5, 16: greges,id. ib. 2, 10, 3 (Schneid. in Veg. 1, 18 reads armentiva).
Charlton T. Lewis, Charles Short, A Latin Dictionary