adverb Etymology: French Date: 1665 in passing, 2. — used in chess of the capture of a pawn as it makes a first move of two squares by an enemy pawn that threatens the first of these squares
EN PASSANT
Meaning of EN PASSANT in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012