Lewis Short
soccŭlus (noun M) : dim.soccus
* A small soccus, Sen. Ben. 2, 12, 1; Suet. Vit. 2 fin.; Plin. 9, 35, 56, § 114.—Of the sock worn by comic actors (v. soccus, II.), Plin. Ep. 9, 7, 3; Quint. 10, 2, 22.
Charlton T. Lewis, Charles Short, A Latin Dictionary