Disguise was the old English word for a masque.
B. Jonson.
Dis*guis"ed*ly (?), adv. In disguise.
Dis*guis"ed*ness, n. The state of being disguised.
Dis*guise"ment (?), n. Disguise. [R.] Spenser.
Dis*guis"er (?), n. 1. One who, or that which, disguises. Shak.