An originally Low and Central German form (though not in all dialects of the latter). From Middle Low German and late Middle High German lippe, from Proto-Germanic *lipjô. One reason for the form’s prevailing in modern standard German was its use in Luther’s Bible translation. It gradually reduced Upper German Lefze to a marginal role (now “lip of a predator”, but rare).
Lippe f (genitive Lippe, plural Lippen)