Extended Strong's Greek Lexicon (Abbott-Smith based)
genuine
Usage: γνήσιος, -α, -ον (γίγνομαι), [in LXX: Sir.7:18, 3Ma.3:19 * ;] __1. prop., lawfully begotten, born in wedlock (in π., γυνὴ γ., a lawful wife; MM, see word). __2. true, genuine, sincere: Php.4:3, 1Ti.1:2, Tit.1:4; as subst., τὸ γ. = ἡ γνησιότης, sincerity, 2Co.8:8. † (AS)