燕えん尾び服ふく

noun

tailcoat

A formal men's coat with a long back divided into two tails, worn for very formal occasions such as weddings or ceremonies.

• 新しん郎ろうは燕えん尾び服ふくを着きて式しきに臨のぞんだ。

  The groom attended the ceremony wearing a tailcoat.