Lewis Short
(adjective) : sub-nÄger, gra, grum
* Somewhat black, blackish: ventriosus, subniger,Plaut. Ps. 4, 7, 120: oculis,id. Merc. 3, 4, 55: labris (canum),Varr. R. R. 2, 9, 3: color (cutis),Cels. 5, 28, 4.
Charlton T. Lewis, Charles Short, A Latin Dictionary