verb/ʁə.mɥe/
to move (lips, head, arms, etc.); to wag (a tail); to twitch, flick; to swing (one's arms); to move, shift (an object)
“Le chien[…] n'avait pas de queue, alors il remuait l'arrière-train pour signifier qu'il était content.” — The dog […] didn't have a tail, so it wagged its hindquarters to show it was happy.
From re- + muer.