Etymology and distribution of 友師.

Tomoshi 【友師】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Toukyou-to Oota-ku . Saitama-ken birthplace of Iruma-gun, Higashi-gun. Hiru is a place name with a record since the Heian period. Iruma is a place name with a record since the Nara period. He said that he lived in the border between Higashi-gun and Iruma-gun. Estimated from tradition is Meiji New Last Name. Toukyou-to Oota-ku Distributed in Minamisenki.