樺杣内 かばそまない Kabasomanai
Iwanai, Shiribeshi region, Hokkaidō
Ainu spellings: Kapar-so-oma-nay
The name survives in the tunnel that used to carry the road past the waterfall.
Referents
- river The stream with the Hashigo-daki, the ladder waterfall, partway along the present Raiden tunnel, between the former Unoiwa and Kabasomanai tunnels. The waterfall was once visible from the road; the whole stretch is now under a snowshed and hard to reach on foot.
Analyses
kapar-so-oma-nay
カパソマナイ ‘stream with a flat waterfall in it’ proposedProponent: zenibako_trek（小樽銭函地名歴史研究会） (zenibako_trek (Otaru Zenibako Place-Name and History Society))
The reading describes the Hashigo-daki itself.
Confidence: medium
kapar, so, oma and nay are dictionary words in the proposed senses, the compound is ordinary, and no source contests it.
zenibako_trek… 「梯子滝／カバソマナイ」田村1996 so ソ【名】滝／kapar カパㇻ【自動】薄い
Sources
zenibako_trek… 田村1996