蝦夷方言藻汐草

Ota lists sircaroonne for a broad wetland with the source label 蝦夷記; the neighboring sitcaroonne is explicitly marked 新. Only the former is a historical-source comparison. Batchelor Shiricharonne means a broad space of land, supporting the terrain sense with a different vowel sequence. Use the quoted whole form sircaroonne rather than implying that the earlier sir + caro + onne segmentation is established. Modern everyday usage, exact boundaries and the correspondence between the historical vowel sequences remain unverified; all compared whole-form queries return zero.