Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† moechus, i, m., = μοιχός, a fornicator, an adulterer: magnus mulierum, Plaut. Mil. 3, 1, 180; Ter. And. 2, 1, 16; id. Eun. 5, 4, 35; Hor. C. 1, 25, 9; id. S. 2, 7, 13; 72; Juv. 9, 25; 14, 26 et saep.