ETYM Old Eng. cortin, curtin,fr. Old Fren. cortine, curtine, French courtine, Late Lat. cortina, curtian, also, small court, small inclosure surrounded by walls, from cortis court. Related to Court.
1. Any barrier to communication or vision.
2. Hanging cloth used as a blind; SYN. drape, drapery, mantle, pall.

To provide with curtains, as of a room or a window.