1690s, "spiral ornament on an Ionic capital," from French volute, from Italian voluta, from Latin voluta "a spiral scroll," originally fem. past participle of volvere "to turn around, roll" (see volvox). Extended 1756 to any spiral thing or part. As a type of spiral seashell, it is attested from 1753.
volute vo·lute (və-lōōt')
A spiral formation, such as one of the whorls of a gastropod shell.