from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Exposed to possible capture. Used of a chess piece.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. (of a chesspiece) undefended, able to be captured. (in the air)
from The Century Dictionary and Cyclopedia
- In chess, in a position to be taken: as, a piece or pawn may be put or left en prise.
French : en, in + prise, grip, grasp.(American Heritage® Dictionary of the English Language, Fourth Edition)
From French (Wiktionary)