Etymology and distribution of 越居.

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

Okayama-ken .

① Okayama-ken Kume-gun Misaki-chou Originated from Ohdo's underwear in the lower part. Tell him that he changed the name from Sugawara surname in the same place in 1532 (first year of astronomy). 菅原 Sugawara reference.

② Topography . Add "Hara" directly, which is the surname of Kagoshima-ken 's Amami archipelago. Estimated at the time of returning to Japan in 1953. 直 Nao reference.