Etymology and distribution of 古杉.

Kosugi 【古杉】^{レベル4
About 500}  The Japanese surnames etymology dictionary.

Shizuoka-ken , Kagoshima-ken , Kagawa-ken . Terrain . From the vertebra and the field. Fukui-ken Sakai-shi I tell him that he was engaged in agriculture in Mikuni-cho Kago. Estimated in the Edo period. Fukuoka-ken Chikujou-gun Chikujou-machi Shiita is a place name with a record since the Sengoku period.

* Hyougo-ken Originated from Shiina of Kawabe-gun. Location unknown. There was Mr. Shinada's surname during the Kofun period.

Furusugi 【古杉】^{レベル4
About 500}  The Japanese surnames etymology dictionary.

Niigata-ken , Tochigi-ken , Toukyou-to .

① Topography . From the place that draws mountains and water.

② things . Kyouto-fu Kyouto-shi Say Mr. Sakurai from Edo period from Yamai (Yamanoi), a manor located near Kameya-cho in Nakagyo-ku. 桜井 Sakurai reference. Kyouto-fu There is also a passage from Yamai Temple in Kurodo of Kyouto-shi . Period, location unknown. The pronunciation is Yamanoi.

③ Kumamoto-ken Yamaga-shi Originated from Yamanoui in Shikushida 's Shimukita.

④ Iwate-ken Ninohe-gun Ichinohe-machi Born of Ootomi Yamai. It is distributed in the same place.