counterpane

Corrupted from counterpoint, from the employment of pane (“a shaped figure in a coverlet”).

counterpane (plural counterpanes)

1. The topmost covering of a bed, often functioning as a blanket; a coverlet.
   • 1851, Herman Melville, Moby Dick, Chapter 4:

     My arm hung over the counterpane, and the nameless, unimaginable, silent form or phantom, to which the hand belonged, seemed closely seated by my bed-side.

   • 1915, W.S. Maugham, "Of Human Bondage":

     When he had got a light he saw that she had taken away all her things and the baby's .. and all the things on the washing-stand had been broken, a knife had been drawn cross-ways through the seats of the two chairs, the pillow had been slit open, there were large gashes in the sheets and the counterpane, the looking-glass appeared to have been broken with a hammer.

• bedcover, bedspread