Etymology and distribution of 徳岩.

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

Shizuoka-ken , Kanagawa-ken , Nagano-ken .

① Shizuoka-ken Hamamatsu-shi Origin of Timagi-cho (formerly Hanbai) in Higashi-ku. A place name with a record since the Edo period.

② Shizuoka-ken Hamamatsu-shi Tenryu-ku birthplace of Sakuma-cho half birth. A place name with a record since the Edo period.

③ Topography . From half the place. Nagano-ken Kiso-gun Ookuwa-mura Nojiri, Shimane-ken Hamada-shi Distributed in Asai-cho. Toukyou-to tells that half of the ten are five and that it is a pronunciation of goose.

④ Toyama-ken Kurobe-shi Originated from the lower half of the underside of Unazuki cho. Tell him that he was engaged in agriculture near here. Estimated in the Edo period.