Etymology and distribution of 五丹.

Gotan 【五丹】^{レベル2
About 40}  The Japanese surnames etymology dictionary.

Kagoshima-ken Kirishima-shi , Hiroshima-ken .

① Topography . From the favorable "heavy" and round land. Kagoshima-ken Kirishima-shi Morningside town Arisawa is based.

② Abstract . Synthesis of weight and Goro Maru. Hiroshima - ken Miyoshi - shi Mr. Gorimaru in Sanwa Town says that Hiroshima - ken Miyoshi - shi Masazaka Town Nagata 's Mr. Shigeya was adopted and he called it during the Edo period. 是重 Koreshige reference. 五郎丸 Goroumaru reference.