Abbott-Smith Manual Greek Lexicon
γενέσια (G1077)
2 * γενέσια , -ων, τά , neut. pl. of adj. -ιος, -ον , relating to birth ( γένεσις ); in Attic Gk., a commemoration of the dead . In late Gk., a birthday feast (= cl. γενέθλια ; so in π. , v. MM, Exp. , x; cf. also Rutherford, NPhr. , 184): Mt 14:6 , Mk 6:21 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain