Etymology and distribution of 常井.

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

Hokkaidou Hidakashi-chou Biratori-chou , Tokushima-ken Tokushima-shi , Hiroshima-ken Higashihiroshima-shi .

① Ainu system . Hokkaidou Hidakashi-chou Biratori-chou Biratori-chou Originated in Nagiuchi (Osachinai). In the Edo period the name of the place with a record as "Ootsunai". The Ainu language osat nai (o-sat-nai) expresses "Kawajiri, Dry, Sawa" as "Hikawa (Hikawa)" and uses the character of "Hikawa". It is based in the same place.

② Tokushima-ken Tokushima-shi Kokubu city - Japan opening place is a place name with a record in the notation of "Hikai" during the Warring States Period. It is based in the same place.

③ Korea type . There is a record of naturalization on Fukui-ken Sabae-shi on April 23, 1957. Zheng the real name. 鄭 Tei reference.

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

Fukuoka-ken , Ooita-ken , Toukyou-to .

① Ooita-ken Nakatsu-shi Origin of Noyori. A place name with a record since the Edo period.

② Mie-ken Ise-shi Birth of Nishihamahama Town (formerly Noyori). A place name with a record since the Kamakura period. The place name was also written as "entrance". He was in the Heian period.