Bailly
λειψί·φωτος, ος, ον [ψῐ] c. λειψιφαής P. ÉG.
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LSJ
ον, waning, Paul. Al. M. 4, Cat.Cod.Astr. 8(2).107.13, al. ; — also λειψίφως, Vett.Val. 191.6, Eust. 811.63; but ἥρωες… λιψόφωτες (sic) who have quitted the light of day, PMagPar. 1.1409.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)