En Passant Definition

äɴ pä-säɴ

adverb

In passing; by the way.

Webster's New World

Used in reference to a move in chess in which a pawn that has just completed an initial advance to its fourth rank is captured by an opponent pawn as if it had only moved to its third rank.

American Heritage

Synonyms:

Synonyms:
in-passing

noun

(chess) A move in which a pawn captures an opposing pawn on the same rank immediately after the latter moved two squares from its initial position as if it had captured it while the latter was passing through.

Wiktionary

Other Word Forms of En Passant

Noun

Singular:

en passant

Plural:

en passants

Origin of En Passant

French en in passant passing

From American Heritage Dictionary of the English Language, 5th Edition
French en passant (“in passing”)

From Wiktionary