Etymology and distribution of 小居.

Oi 【小居】^{レベル3
About 50}  The Japanese surnames etymology dictionary.

Shiga-ken , Nagano-ken , Oosaka-fu .

① Originated from Shimane-ken 's Oki Islands. A place name with a record since the Nara period. Shiga-ken Kouka-shi Koga-cho Oki is a stopover. A place name with a record since the Edo period. Tell the place name from what Mr. Oki did.

② 沖 variant. Nagano-ken Adzumino-shi Mr. Meikyu Higashi Kawade tells that it was an official name in Shizuoka Ward. Estimated in the Edo period.

Koi 【小居】^{レベル3
About 50}  The Japanese surnames etymology dictionary.

Kyouto-fu , Aichi-ken Nagoya-shi · Fukuoka-ken Kitakyuushuu-shi Kokura-ku. Terrain . 坂下 's variant. Fukuoka-ken Kitakyuushuu-shi Distributed in Komachi- ku Kokura-ku. 坂下 Sakashita reference.