Etymology and distribution of 檢學.

Kengaku 【檢學】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Kagoshima-ken , Oosaka-fu , Miyazaki-ken .

① Topography . A variant of 坂之上 . Kagoshima-ken Ichikikushikino-shi From Osamura gate of the gate division system which was in Edo period in Osato. Kagoshima-ken Kagoshima-shi Distributed in Naoki-cho.

② Topography . 坂上 's variant. Iwate-ken Miyako-shi I will tell you from the top of the hill at the Kariya. 坂上 Sakagami reference.

③ Gifu - ken Takayama - shi Originated from Sakanoue, a small alphabet of Kiyomi - cho.