V / vernātĭo
noun

vernātĭo

gen. vernātōnis · gender feminine · decl. 3rd
the sloughing; shedding of the skin
the sloughing or shedding of the skin of snakes.
Lit., Plin. 29, 5, 32, § 101; 30, 3 8, § 24.—
the slough by extension
Transf., concr., the slough cast off by a snake, Plin. 29, 6, 35, § 11.