Etymology and distribution of オオワイラ.

Oowaira* 【オオワイラ】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Oosaka-fu , Fukushima-ken , Toukyou-to .

① There is 甲斐 surname. Fukushima-ken Futaba-gun Ookuma-machi There is distribution in Chuo -ku .

② Abstract . Kao's abbreviation. There was a case where Oosaka-fu Oosaka-shi renamed in 1950. 加斗 Katou reference.