Webster's Revised Unabridged Dictionary · 1913

Cloak

Cloak (klōk; 110) , noun

[Of. cloque cloak (from the bell-like shape), bell, French cloche bell; perh. of Celtic origin and the same word as English clock. See 1st Clock.]

1.
A loose outer garment, extending from the neck downwards, and commonly without sleeves. It is longer than a cape, and is worn both by men and by women.
2.
That which conceals; a disguise or pretext; an excuse; a fair pretense; a mask; a cover.
No man is esteemed any ways considerable for policy who wears religion otherwise than as a cloak. — South
Collocations (1)
Cloak bag , a bag in which a cloak or other clothes are carried; a portmanteau. — Shakespeare

Cloak , transitive verb

To cover with, or as with, a cloak; hence, to hide or conceal.
Now glooming sadly, so to cloak her matter. — Spenser