en passant


  1. (italics) French. in passing; by the way.
  2. Chess. (used when a pawn that has moved two squares is captured by an opponent’s pawn commanding the square that was passed.)


  1. in passing: in chess, said of capturing a pawn that has made an initial move of two squares to its fourth rank, bypassing the square where an enemy pawn on its own fifth rank could capture it. The capture is made as if the captured pawn had moved one square instead of two

French, literally “in passing,” from present participle of passer “to pass” (see pass (v.)). In reference to chess, first attested 1818.

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