Etymology and distribution of 菱水.

Hishimizu 【菱水】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Hiroshima-ken Hiroshima-shi Saeki-ku. A variant of a 三刀屋 . Toukyou-to tells me that Hiroshima-ken came out and originally lived in Shimane-ken eastern part (formerly Izumo nation) and was a surname of a three-branch shop. In estimation, Tatsuteri, Mitaniya, Mikiya valley in change. 三刀屋 Mitoya reference. 三刀谷 Mitoya reference.