Extended Strong's Greek Lexicon (Abbott-Smith based)
to commit adultery
Usage: μοιχάω, -ῶ (= cl. μοιχεύω), [in LXX (mid., absol. and with accusative, with party of either sex as subj.) : Jer.3:8 5:7 7:9 9:2 23:14 29:23, Eze.16:32 23:37, 43 (נָאַף) * ;] to commit adultery with: with accusative, fem. In NT always mid, in same sense; of the man : absol., Mat.5:32 19:9 (WH, txt., R, mg., om.); before ἐπ᾽ αὐτήν, Mrk.10:11; of the woman: Mrk.10:12.† (AS)