Etymology and distribution of 小太刀.

Kodachi 【小太刀】^{レベル4
About 1,100}  The Japanese surnames etymology dictionary.

Hokkaidou , Oosaka-fu , Hyougo-ken .

① Kyouto-fu Originated from the vicinity of Shichiryo dori of Kyouto-shi . A place name with a record since the Heian period.

② Tokushima-ken Itano-gun Kamiita-chou Origin of Shichijyo. A place name with a record since the Edo period. In Tokushima-ken there is a belief that he residented from Kyouto-fu Kyouto-shi , avoiding Junin 's turbulence from 1467 (first year of Ren) to 1477 (9 years of civilization).

Kotachi 【小太刀】^{レベル4
About 1,100}  The Japanese surnames etymology dictionary.

Ibaraki-ken Mito-shi . 悉知 variant. 悉知 Shitchi reference.