Etymology and distribution of 軽本.

Karumoto 【軽本】^{レベル2
About 40}  The Japanese surnames etymology dictionary.

Aichi-ken Toyokawa-shi . Summary . The grass of the first element comes from Kusakabe. Aichi-ken Toyokawa-shi The shrine of the Shogaku (Toga) shrine in Nishigaki - machi tells us that he used "grass" from Kusakabe surname, "deer" and "abrasion" from shrine name. It was also written as "Shimotsudo". It is unknown which day Shimomuto will exist. 日下部 Kusakabe reference.