Etymology and distribution of 乙社.

Okkoso 【乙社】^{レベル3
About 80}  The Japanese surnames etymology dictionary.

Yamanashi-ken , Nagano-ken , Toukyou-to . Distribution including Kawanishi.

① variant of 葛西 . Yamanashi-ken Chuuou-Shi in the Fuse Yamanashi-ken is located in the west of the Fuji River flowing through the Yamanashi-ken Minamikoma-Gun Minobu-Chou tell and was changing one's family name from Kasai surname in that Ryoshi the Nishijima in 1577 (1577 years). "West of Fujikawa" means.

② Yamanashi-ken Nakakoma-gun Shouwa-chou Introduction to Haishi. A place name with a record since the Warring States Period. It is distributed in the same place. Nagano-ken Suwa-shi has passed down.

Otsukoso 【乙社】^{レベル3
About 80}  The Japanese surnames etymology dictionary.

香西 Kouzai reference.

Otosha 【乙社】^{レベル3
About 80}  The Japanese surnames etymology dictionary.

Oosaka-fu Ibaraki-shi . Oosaka-fu Ibaraki-shi Distributed in Tonokawara-machi.