Etymology and distribution of 合口.

Aiguchi 【合口】^{レベル3
About 60}  The Japanese surnames etymology dictionary.

Tochigi-ken Sano-shi . Summary . Abbreviation for Soma. Tochigi - ken Sano - shi In Kudzu - e, it is said that Soma Surname was from Fukushima - ken Souma - shi . Estimated in the Edo era change. Tochigi-ken Sano-shi There is a tradition that it was pronounced in Aizawa Town as well as Sosi. 相馬 Souma reference.