motte

motte (mound of earth); clod (lump of earth); block, lump (of food etc.); pubic mound, mons veneris

“motte de beurre” — lump of butter

Inherited from Old French mote (“mound”), from Medieval Latin mota (“a mound, hill”), of Germanic origin, perhaps via Frankish *mot, *motta (“mud, peat, bog, turf”), from Proto-Germanic *mutô, *mudraz, *muþraz (“dirt, filth, mud, swamp”).