Etymology and distribution of 刀上.

Tachikami 【刀上】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Gifu-ken Gifu-shi , Kyouto-fu , Shizuoka-ken .

① Convention . Composition of Fujito and Fujimoto. In Gifu-ken Gifu-shi Tsubaki - dong, tell Fujito's "door" and Fujimoto's "book" that it was reconciled with Mr. Fujita who was also broke up with Mr. Fujimoto. Estimated in the Edo period. It is based in the same place. 藤戸 Fujito reference. 藤本 Fujimoto reference.

② There are surname including "door".