頭あたまを丸まるめる

expression, ichidan verb

be tonsured; have one's head shaved

Literally means to shave one's head, often in a religious context. Can be used figuratively for becoming a monk.

• 彼かれは出しゅっ家けして頭あたまを丸まるめた。

  He entered the priesthood and shaved his head.

expression, ichidan verb

become a monk

Figurative extension of the head-shaving sense, referring to the act of becoming a Buddhist monk.

• 悩なやみの末すえ、彼かれは頭あたまを丸まるめる決けっ心しんをした。

  After much anguish, he decided to become a monk.