Etymology and distribution of 根耒.

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

Kumamoto-ken , Hiroshima-ken , Fukuoka-ken .

Originated from Shimane-ken Masuda-shi . A place name with a record since the Heian period.

② variant 真下 . Fukui-ken Fukui-shi Major was in the Edo period in the Fukui clan of the clan office. The same clan says that he changed his name from the last name in the Edo period. Masashita is an old pronunciation in estimation. Last name was also written as "Sanada". 真下 Mashimo reference. 真田 Sanada reference.

* Toukyou-to Chiyoda-ku Chiyoda was in the Edo era as the shogunate of the Edo shogunate of the government agency. The shogun shall tell from Gusma-ken 's Masuda Township. Period, location unknown. Gunma-ken Maebashi-shi Masuda (Masuda) Town · Shimoda-cho is a place name with a record since the Edo period.

※ There is a transmission in the Kanto district that changed from Masudo surname. Unknown times. 益戸 Masudo reference.

※ Nara-ken Kashihara-shi Shikashi- machi neighborhood (formerly Masuda) is a place name with a record since the Kamakura period. In the Kyouto-fu Kyouto-shi there was a family name of Shata (master) history in the Heian period.