Etymology and distribution of 古水.

Kosui 【古水】^{レベル3
About 400}  The Japanese surnames etymology dictionary.

Hiroshima-ken , Kouchi-ken Shimanto-shi , Hyougo-ken . 重山 surname is present.

Komizu 【古水】^{レベル3
About 400}  The Japanese surnames etymology dictionary.

Kagoshima-ken Kimotsuki-gun Minamioosumi-chou . Terrain . Kagoshima-ken Kimotsuki-gun Minamioosumi-chou Root exclusive Kawakita entrance From the mountain below. In the same era there was a Yamagake mountain gate under the gate division system in the Edo period.

Furumizu 【古水】^{レベル3
About 400}  The Japanese surnames etymology dictionary.

Niigata-ken , Ishikawa-ken , Toyama-ken .

① Niigata-ken Itoigawa-shi Shimokura is a place name with a record since the Edo period. It is based in the same place. Ishikawa-ken Kahoku-gun Tsubata-machi Yoshikura is a place name with a record since the Edo period. Ishikawa-ken Kanazawa-shi Marunouchi was in the Edo era at the Kaga clan in the Clan office. Shiga-ken Kouka-shi It was in the Edo period in Nojimano Town Shopping Town.

② things . From the Yoshikura gate of the gate division system that was in the Edo period. An example of the location of the gate. Kagoshima-ken Kanoya-shi Kushiro-machi Shimogounobara, Kagoshima-ken Kimotsuki-gun Kimotsuki-chou Miyashita. The name of the gate is from Yoshi and Kuraku, who is a favorite character.