French word mamelu comes from French -u, French mamelle (Breast. Nipple.)

Detailed word origin of mamelu

Dictionary entry	Language	Definition
-u	French (fra)	Forming adjectives having the sense of ‘having quality of, being provided with’ (the root word).
mamelle	French (fra)	Breast. Nipple.
mamelu	French (fra)	Heavy-breasted.

Words with the same origin as mamelu