Etymology and distribution of 紺屋島.

Koyajima 【紺屋島】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Kumamoto-ken , Hiroshima-ken , Kagoshima-ken Makurazaki-shi .

① Topography . From the bamboo below. Kumamoto-ken Kamimashiki-gun Yamato-chou Shimomaru stones are based. Hiroshima-ken Miyoshi-shi Distributed in Sanwa Town Kamiichi. There is 竹岡 surname in the same place. 竹岡 Takeoka reference.

② Kagoshima-ken Makurazaki-shi Originated from the bamboo of Myobi town's underwear. The lower bamboo gate of the gate division system which was in the Edo era in the same place was the name of a gate with the name of "Shimotsuhara (Shimotakura) gate" in 1767 (Meiwa 4 years).