Etymology and distribution of 輝内.

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

Wakayama-ken , Kagoshima-ken Ooshima-gun Setouchi-chou · Hokkaidou . Yasuno is rare.

① 波多野 's variant.

② Topography . "Wild" was added to Taishi which is the surname of Amagi archipelago of Kagoshima-ken . Estimated at the time of returning to Japan in 1953. 泰 Tai reference.