cornĕŏlus, a, um, adj. dim. [1. corneus].
I Horny, of horn (very rare): introitus (auris), * Cic. N. D. 2, 57, 146.—*
II Transf., hard, firm , Petr. 43, 7.
corneolus adj. dim. 1 corneus, horny, of horn : introitus (auris). ...
An Elementary Latin Dictionary