Etymology and distribution of 雨郡.

Amagoori 【雨郡】^{レベル3
About 60}  The Japanese surnames etymology dictionary.

Niigata-ken , Iwate-ken , Hokkaidou .

① Niigata-ken Sanjou-shi Origin of Arasawa. A place name with a record in the notation of "Arisa" during the Warring States Period.

② Iwate-ken Rikuzentakata-shi Origin of Arakawa Takada Town. It is distributed in the same place.

③ Topography . From the rough lily.

④ Convention . Abbreviation of Aratani. Hiroshima-ken Kure-shi In Tobara- machi, tell her that descendants of Mr. Aratani of the same place left "rough". Meiji New Last name in estimation. 荒谷 Aratani reference.

⑤ Things . Yamagata-ken Yonezawa-shi Meiji New surname by monk of Tazawa Temple of Shingon sect in Tetsudazawa. From "rough" of Arayama mountain which is the mountain of the temple and "Sawa" of Tazawa temple of the temple.