Origin of lecherousMiddle English from Old French lecheros
(comparative more lecherous, superlative most lecherous)
- given to excessive sexual activity and debauchery
From Middle English lecherous, licherous, from Old French *lecherous (attested in Old French lecherousement (“lecherously")), from Old French lecherie, licherie (“gluttony, sensuality, lewdness, lechery"), from Old French lecher, lechier, lekier, lescher (“to lick, live in gluttony or sensuality"), from Old Frankish *lekkÅn (“to lick"), from Proto-Germanic *likkÅnÄ… (“to lick"), from Proto-Indo-European *leyÇµÊ°- (“to lick"), equivalent to lecher +"Ž -ous. More at lick.