三さん角かく帽ぼう

noun

tricorne; three-cornered hat

Refers to the historical hat with a brim turned up on three sides, worn in the 17th–18th centuries.

• 18世せい紀きのヨーロッパでは、紳しん士しが三さん角かく帽ぼうをかぶっていた。

  In 18th-century Europe, gentlemen wore tricornes.