Etymology and distribution of 燧土.

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

Ibaraki-ken . Terrain . Ibaraki - ken Kuji - gun Daigo - machi Mr. Suzuki of Ueno Shrine tells that Ibaraki - ken Mito - shi Sannomaru got from Edo era from Tokaigawa Yoshiaki of the Mito lord of the Clan office. The meaning of "the sheen that went by on a trip". There is a telling that it was a place where it was called a place to stop small as "placezawa" as the place name. 鈴木 Suzuki reference.