The Collaborative International Dictionary of English v.0.48:
Nighted \Night"ed\, a. 1. Darkness; clouded. [R.] --Shak. [1913 Webster] 2. Overtaken by night; belated. --Beau. & Fl. [1913 Webster]WordNet (r) 3.0 (2006):
nighted adj 1: overtaken by night or darkness; "benighted (or nighted) travelers hurrying toward home" [syn: benighted, nighted]