ベツチヤ
Ainu「川岸」
petcamedium
Tomita explicitly lists petca as a Shizunai riverbank term, matching 川岸. This later compilation supports the identification without establishing the historical speaker’s dialect or an early spelling; pet ca tests word division.
References
Occurrences (1)
- National Institute for Japanese Language and Linguistics · 乾巻 · Page 9, line 12 · ベツチヤ
…ぞれベセウシ ベシヨーニ泊トマリ岩ワタラ遠いトイマ近いハンゲ川岸ベツチヤ川端たベツシヤム ベツシヤマ ベツシヤムケタ ベツシヤマケタ 陽海シルヽ ヘーシ陰海マカンルヽ境…