Etymology and distribution of 永隅.

Nagasumi 【永隅】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Aichi-ken , Shizuoka-ken .

① There is a 深溝 surname. 深溝 Fukamizo reference.

② Gunma-ken Maebashi-shi Birth of Fukatsu (Kukutsu) in Kasagawa Town. Place name with a record since the North / South morning era. The place name was also written as "Susu." There is a record in the form of "deep nest" in the Heian period in the same era. It is unknown whether the deep nest exists.

③ Topography . In Shimane - ken Izumo - shi there is a tradition that it is because it insisted on deeply when measuring the water depth of Kamisai Lake.