蝦夷方言藻汐草

Sirkunne is explicitly documented for becoming dark, night falling, or the sun setting, directly matching 日暮. The joined form and existing high lexical-identification rating are retained. Sir-kunne is a dictionary spelling and sir kunne displays the components. The historical シリ vowel is not independently resolved by the modern spelling. Later narrative examples establish the same darkness sense, not a numerical probability of the older pronunciation.