Etymology and distribution of 草.

Kusa 【草】^{レベル4
About 1,900}  The Japanese surnames etymology dictionary.

Yamagata-ken , Chiba-ken , Toukyou-to . Distribution including ozake too. Most of Ooita-ken is ozeki.

① Yamagata-ken Tendou-shi Ozeki is a place name with a record since the Edo period.

② Creation . Miyagi-ken Shiroishi-shi In the Ohira - Midori Kitano no - Waki, Mr. Seki tells us that after the battle of 1189 (Bunji 5 years) the battle of Kidogawa called the Koseki surname, it changed further in the Edo period. 関 Seki reference.

③ Chiba-ken Sanbu-gun Kujuukuri-machi Introduction of Ozeki. A place name with a record since the Edo period. It is distributed in the same place. Chiba-ken Sakura-shi Castle town was in the Edo era in the clan Sakura of the Clan office.

④ Saitama - ken Saitama - shi Iwasuki ku ___ I will tell Niigata - ken 's outcome .

⑤ Things . Aomori-ken Kamikita-gun It was in the Edo period in Yokohama-machi . Aomori - ken Kamikita - gun Yokohama - machi It is said that brothers of Mr. Sasaki built Ozeki, Ozeki in order to protect Yahata Shrine of Chihpei. 佐々木 Sasaki reference.

⑥ variant of 尾関 . 尾関 Ozeki reference.

Shitagaki 【草】^{レベル4
About 1,900}  The Japanese surnames etymology dictionary.

外丸 Tomaru reference.