Etymology and distribution of 外岩戸.

Hokaiwado 【外岩戸】^{レベル3
About 60}  The Japanese surnames etymology dictionary.

Mie-ken , Yamaguchi-ken , Wakayama-ken .

① Topography . From mountains and gates. Mie-ken Kumano-shi Distributed in Arima-cho.

② Birth near Kagoshima-ken Izumi-shi (formerly Yamamon). Place name recorded in Kamakura period and Muromachi era.

Hokaiwato 【外岩戸】^{レベル3
About 60}  The Japanese surnames etymology dictionary.

Toukyou-to Katsushika-ku , Kanagawa-ken · Oosaka-fu . There is a surname including "mountain". "Wins" is a favorable character. Chiba-ken Katori-shi Komigawa Town was in the Edo period in the clan of Komigawa in the Clan office.