Etymology and distribution of 久真瑠.

Kumaru 【久真瑠】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Kagoshima-ken Kanoya-shi . Creation . Kagoshima-ken Kanoya-shi From the small retention gate of the gate division system that was in the Shogaki-machi during the Edo period. The name of the gate is from the favorable "holding", "stay".