"stewed, thickened soup," 1640s, bisk, from French bisque "crayfish soup" (17c.), said to be an altered form of Biscaye "Biscay" (see Biscay). Gamillscheg says: "Volkstümliche Entlehnung aus norm.bisque'schlechtes Getränk.'" Modern form in English from 1731.
"unglazed white porcelain used for statuettes, figurines, etc.," 1660s, alteration of biscuit, literally "twice-baked."