Dictionary entry

ὄρθριος

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

ὄρθριος, -α, -ον

(< ὄρθρος), [in LXX: I Ki 28:14, Jb 29:7, III Mac 5:10, 23*;]

early, in the early morning: Lk 24:22, Rec. (v.s. ὀρθρινός).†