Etymology and distribution of 兒野.

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

Kagoshima-ken Amami-shi , Kyouto-fu · Chiba-ken . Creation . "Add" is added to the west which is the surname of Kagoshima-ken Amami archipelago. Estimated at the time of returning to Japan in 1953. 西 Nishi reference.