obatratus

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

ŏb-ātrātus, a, um,

adj., obscured, black, blackish : nascens luna si cornu superiore obatrato surget, pluvias decrescens dabit, Varr. ap. Plin. 18, 35, 79, § 349 Sillig. N. cr. (al. obatro).