モーニングドレス

noun

morning dress; morning coat

Refers to Western formal daytime attire for men, consisting of a morning coat, striped trousers, and a waistcoat. Rarely used in modern Japanese; more often encountered in historical or ceremonial contexts.

• 彼かれは結けっ婚こん式しきでモーニングドレスを着ちゃく用ようした。

  He wore morning dress at the wedding.