Where does “beurre manié” come from?

beurre manié (French) comes from French beurre, from Middle French burre, from Old French bure, from Latin būtȳrum, from Ancient Greek βούτυρον, from Ancient Greek τυρός, from Proto-Hellenic tūrós, from Proto-Indo-European tuh₂-ró-s — to swell; to crowd; to be strong.

beurre manié (French): kneaded butter