蝦夷方言藻汐草

usata is a provisional Latin reading with guess confidence. Batchelor Usata describes the western side of a fireplace, and Hirayama explicitly questions its fit with 庭. Tamura usata concerns succeeding generations and cousin relationships; both retrieved usata contexts concern kinship. Neither meaning identifies a garden or yard. usa ta is a segmentation comparison; usara compares Hirayama’s nearby ウシヤロロ lower-seat entry and would require a different final consonant. The source’s long vowel and lexical meaning remain unresolved.