Etymology From Middle English lechour, from Old French lecheor (“glutton, sensualist, libertine”) , from Old French lecher, lechier, lekier, lescher (“to lick, live in gluttony or sensuality”), from Old Frankish *likkōn (“to lick”), from Proto-Germanic *likkōną (“to lick”), from Proto-Indo-European *leyǵʰ- (“to lick”). More at lick.
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A lecherous person: someone given to excessive sexual activity or debauchery.
The comedies work in very obvious ways to feminize this socially-ominous triad of young fops, old lechers, and greedy businessmen.2000, Deborah Payne Fisk, The Cambridge Companion to English Restoration Theatre, page 202:
Etymology From Middle English lechour, from Old French lecheor (“glutton, sensualist, libertine”) , from Old French lecher, lechier, lekier, lescher (“to lick, live in gluttony or sensuality”), from Old Frankish *likkōn (“to lick”), from Proto-Germanic *likkōną (“to lick”), from Proto-Indo-European *leyǵʰ- (“to lick”). More at lick.