Cloak n.
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.
Cloak bag, a bag in which a cloak or other clothes are carried; a portmanteau.