Abbott-Smith Manual Greek Lexicon
εὐνοῦχος (G2135)
8 εὐνοῦχος , -ου, ὁ (i.e. ὁ τὴν εὐνὴν (bed) ἔχων ), [in LXX for סָרִיס (perhaps not of necessity an actual eunuch; DB , s.v.), Ge 39:1 , al., Wi 3:14 , Si 20:4 30:20 ;] an emasculated man, a eunuch : Mt 19:12 ; one such holding, as was common, high office, as of chamberlain, at court, Ac 8:27 , 34 , 36 , 38 , 39 ; metaph., of one naturally incapacitated for or voluntarily abstaining from wedlock, Mt 19:12 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain