Ainu Morpheme Explorer
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Eastern Hokkaidō: Lake Mashū

摩周

ましゅう Mashū

Lake Mashū is enclosed by caldera walls, with Kamuyshu Island rising from the lake. Hasegawa (2004) gives Kintan-kamuy-to as another name for the lake and discusses two proposals for Mashū while leaving its origin unresolved.

Ainu spellings: マシュン・トー, マ・シュ, キンタン・カムイ・ト

Analyses

マシュン・トー

proposed

Gull lake

  • マシュン gull
  • トー lake

Proponent: 永田方正

Objections

国立環境研究所2004 pp. 75–76, 長谷川雅広「4.8.2 マシュウ名称をめぐる謎」, 永田説の紹介
Analysis details
Confidence: low

マ・シュ

proposed

The old woman of the small island

  • マ small island
  • シュ old woman

Proponent: 佐藤直太郎

Hasegawa recounts a legend in which an old woman searching for her grandchild rests in the lake and turns into Kamuyshu Island. Satō’s interpretation connects this story with the lake name.

Objections

国立環境研究所2004 pp. 75–76, 長谷川雅広, 4.8.1(3)「カムイシュ島の老婆譚」・4.8.2(佐藤説の紹介)
Analysis details
Confidence: low

Attestations

  • キンタン・カムイ・ト document 2004 GEMS/Water摩周湖モニタリングデータブック

    The report gives this lake name as “a divine lake in the mountains”.

Sources