stuc m (plural stucs)
From Middle French stucq (“a coating imitating marble”) from Italian stucco (“coating made of pulverised gypsum, plaster, stucco”) from Old Italian stucco, from Lombardic stucki, *stucchi (“crust, fragment, piece”) from Proto-Germanic *stukkiją (“stick, beam, stump”), from Proto-Indo-European *(s)tewg- (“shock, impact”). Akin to German stukki (“crust, fragment, piece”) (German Stück (“piece”)), Old Saxon stukki (“piece, fragment”), Old English stycce. More at stucco.