山やま高たか帽ぼう子し

noun

derby hat; bowler hat

A stiff felt hat with a rounded crown, historically associated with early 20th-century Western fashion in Japan. Often called 山高帽 for short.

• 祖そ父ふは若わかい頃ころ、山やま高たか帽ぼう子しをかぶって写しゃ真しんを撮とった。

  My grandfather wore a bowler hat when he had his photo taken in his youth.