Ainu Morpheme Explorer
All place names

沙流 さる Saru

Hidaka town and Biratori, Hidaka region, Hokkaidō

Ainu spellings: Sar, Sisirmuka

The river carries two names, one for the plain it crosses and one for its mouth.

Location

42.7687, 142.3827 · Coordinates: OpenStreetMap Nominatim, 2026-09-10, on 沙流川. Open in OpenStreetMap

Referents

  • river The Saru River, running through Hidaka town and Biratori, also called Shishirmuka. With the Mukawa beside it, it was a centre of Ainu settlement in the early modern period
  • settlement The reed plain about Tomikawa in Hidaka town. Sarubuto, sar-putu 'the mouth of the Saru River', was the name in early Meiji; Saruba, sar-pa 'the upper part of the reed plain', survives in Biratori

Analyses

sar

サラ ‘reed plain’ received reading
  • sar ‘reed plain’

Proponent: 定説

The author supports the reading and takes the named ground to be the grassland about Tomikawa in Hidaka town. Sarubuto and Saruba are built on the same word.

Confidence: medium

sar 'reed plain' is a dictionary word in the sense used, the named ground is identified, and two neighbouring names, sar-putu and sar-pa, are built on the same element. No source in the article contests the reading.

zenibako_trek… 「沙流(さる)」田村1996 s.v. sar サㇻ【名】葦原、ヨシ原

si-sir-mukka

シシリムカ ‘place where the ground closes over’ received reading
  • si ‘true, main’
  • sir ‘land, ground’
  • mukka ‘be blocked, closed off’

Proponent: 定説

The other name of the Saru River. The author refers it to the river mouth, which becomes a dune and closes from time to time, as in the Mukawa mukka-p 'place that closes'. He sets beside it Shirifuka, the old name of the Horokappu River in Kyōwa, sir-pukka 'place where the ground swells up'.

Confidence: low

sir and mukka are dictionary items in the senses used and the closing mouth is a recurring feature of such names; the article gives no dictionary for the initial si.

zenibako_trek… 「沙流(さる)」

Sara-moshiri

‘The country open to the skies’ proposed
  • Sara ‘open’
  • moshiri ‘country’

Proponent: John Batchelor

See Asari.

Confidence: low

Batchelor's reading and gloss as printed in 1905; the segmentation is his, and several of its elements answer to no dictionary headword.

Batchelor1905 § V "Place Names Considered", s.v. Saru

Sources

zenibako_trek… 田村1996 Batchelor1905