tenebresco

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

tĕnē̆bresco (tĕnē̆brasco), ĕre, v. inch. n. [tenebrae],

to grow or become dark (eccl. Lat.), Hier. in Isa. 5, 12, 10; Aug. Genes. ad Lit. 1, 10 fin. ; Vulg. Amos, 8, 9: oculus, id. Zach. 11, 17.