lech·er
noun/ˈletʃə(r)/
/ˈletʃər/
(disapproving)- a man who shows an unpleasant sexual interest in somebody
好色之徒；色鬼；淫棍 Word OriginMiddle English: from Old French lichiere, lecheor, from lechier ‘live in debauchery or gluttony’, ultimately of West Germanic origin and related to lick.