surcoat

Meanings

1. A loose sleeveless garment worn over a suit of armor, sometimes colored or embroidered with the wearer's coat of arms.
2. An overgarment worn over a woman's gown; a kind of short robe worn over the tunic at the close of the 11th century.

Etymology

From Middle English surcote, from Old French surcote, formed with sur (“over”) and cote (“coat, robe, tunic, overgarment”), respelled based on coat.