Etymology and distribution of 永岩.

Nagaiwa 【永岩】^{レベル4
About 700}  The Japanese surnames etymology dictionary.

Oosaka-fu , Hyougo-ken , Kagawa-ken .

① Kyouto-fu Kidzugawa-shi Yamashiro Town Yoshinori Hirao. Place name with a record as "Heikka" in the Muromachi period.

② Nagano-ken Saku-shi Origin of Uenohira and Shimohirao. A place name with a record since the Kamakura period.

③ Okayama-ken Mimasaka-shi Originated from Hirao of a small town in Furuicho.

④ Mie-ken Kameyama-shi The birthplace of Kusudahei (Kusubirao) town. It is distributed in the same place. A place name with a record since the Edo period.

⑤ Yamaguchi-ken Yanai-shi Birth origin of Kotaro Kodaira (Kobilao). It is distributed in the same place.

⑥ Nagasaki-ken Nagasaki-shi Originated from Hirao in Otado-cho.

※ Abstract . Abbreviation for Matsudaira. The teacher of Western Aichi - ken (Owari Owari) is said to be from the "Miraira" of Matsudaira and the "Tail" of Owari. 松平 Matsudaira reference.

※ Topography . In the Maesawa of Iwate-ken Oushuu-shi there was a story that Heike's lost person retired in the mountains of the Shikoku district and used "flat" and "tail" from the ridge. 平 Taira reference.

※ Tell Hyougo-ken from the Hirao of Higashi Hongo, southwest part of the country (formerly Harima Country). Period, location unknown. Hyougo-ken Sayou-gun Sayou-chou A place near Kamimoto Township and Shimonomuri is a comparative site.