Etymology and distribution of 土合.

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

Hyougo-ken , Hokkaidou , Toyama-ken .

① Hyougo-ken Sumoto-shi Yura is based. Hyougo - ken Sumoto - shi There is Hasegawa in Ube 's underwear.

② Toyama-ken Toyama-shi In Oizumi Honcho telling that the descendant of Mr. Watanabe called. Unknown times. 渡辺 Watanabe reference.

③ Ishikawa-Ken Kaga-Shi Yamanaka Onsen Haseda the town originated. A place name with a record since the Edo period. Ishikawa-ken Komatsu-shi Tradition in Yadano-cho.

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

Fukushima-ken · Ibaraki-ken , Niigata-ken . Fukushima-ken Aidzuwakamatsu-shi Takano-cho Osamu Nakanuma Numagi (Numagi) is a place name with a record since the Edo period.

※ Ishikawa-ken Kanazawa-shi Marunouchi was in the Edo period in the Kaga clan in the Clan office.

* Mie-ken Ise-shi It was in the Heian period during the shrine of the grand shrine of Ise Shrine in Toyokawa Town.