To cover with, or as with, a cloak; hence, to hide or conceal.

ETYM Of. cloque cloak (from the bell-like shape), bell, French cloche bell; perh. of Celtic origin and the same word as Eng. clock. Related to Clock.
1. A loose outer garment.
2. Anything that covers or conceals.
A one-piece enveloping garment worn on the shoulders, tied or clasped at the neck or chest, and reaching the knees or ankles. A cloak is generally longer than a cape, which is usually elbow- or hip-length. It often has slits cut into the front of the fabric for arms. Cloaks were popular during the late 19th century and again in the 1960s.