Etymology and distribution of 土合.

Doai 【土合】^{レベル4
About 600}  The Japanese surnames etymology dictionary.

Saitama-ken Fujimi-shi , Kagoshima-ken Ichikikushikino-shi .

① things . From the plant Hagi. Saitama-ken Fujimi-shi In Saizama -ken, Saitama-ken Kawagoe-shi Guo Town told that Mr. Akimoto, the lord of Kawagoe, the lord belonging to the clan, turned autumn into autumn "Hagi" added the crown and renamed it during the Edo period . 秋元 Akimoto reference.

② Kagoshima-ken Ichikikushikino-shi Originated from Hagi -jima, a small figure in Hashima. There was a former residence of Hagiwara in the same area in the Edo era.

③ Topography . Heterogeneity of 萩本 . Nagano-ken Iida-shi It was in the Edo era in the Chiyo era. Kagoshima-ken Satsumasendai-shi From Hagiyonemon gate of the gate division system that was in the Uragonomachi Urashiro in the Edo period.

Tsuchiai 【土合】^{レベル4
About 600}  The Japanese surnames etymology dictionary.

Yamaguchi-ken Shimonoseki-shi · Saitama-ken . Creation . Ken-Yamaguchi Shimonoseki-Shi Yoshida rural Yamaguchi-Ken Hagi-Shi Nii was Ito last name of the doctor Yamaguchi-Ken Hagi-Shi tell and Horiuchi was changing one's family name by the recommendation of Choshu feudal lord of the clan Agency in the Edo era. 伊藤 Itou reference.