Lewis & Short

1. cāro, ĕre, v. a. [cf. Gr. κείρω; Germ. scheren; Engl. sheer], to card (very rare), Plaut. Men. 5, 2, 46; and in Naev. acc. to Varr. L. L. 7, § 54 Müll., p. 92 Bip. (cf.: caritores, 2. carmen, 2. carmino, etc.).