Lewis Short
căvilla | căvil-lum, i (noun F.n) : dim.perh. for calvilla, from calvor; but cf. Sanscr. kava, stingy
* A jeering, raillery, scoffing (ante- and postclass., and very rare): aufer cavillam: non ego nunc nugas ago, * Plaut. Aul. 4, 4, 11; Mart. Cap. 4, § 423.—Access. form , , , App. M. 1, p. 105; Aur. Vict. Epit. 9; cf. Paul. ex Fest. p. 46 Müll.
Charlton T. Lewis, Charles Short, A Latin Dictionary