蝦夷方言藻汐草

The historical ケ agrees with the noske variant in Niida’s sak noske; Yoshimura gives sak noski. Tamura and Kayano identify saknoski as midsummer. Fukasawa discusses regional noske alongside noski, so replacing final e merely to match Saru spelling would obscure a documented variant. The summer-middle interpretation is supported, while the exact astronomical 夏至 sense is less secure. Tamura’s modern seasonal range does not date the historical solstice. The three spaced noske corpus hits include one NINJAL item and its bot copy.