envoûter

to cast a spell, bewitch, charm, hex; to fascinate, captivate, entrance

“Ah çà, je suppose, dit Carhaix, qu'on n'envoûte plus les personnes avec des images de cire et des épingles, avec la « Manie » ou la « Dagyde », comme cela s'appelait, au bon vieux temps?” — "Ah so, I suppose," said Carhaix, "that people are no longer being bewitched with images of wax and pins, with "Manie" or "Dagyde", as it was called in those good old days?"

From en- + Old French volt (“face, visage”) (from vultus (“face”)) + -er. Some forms of folkish magic were practiced using wax (or other material) effigies of the face of the victim.