Tsunaganedo nagare mo yukazu takasebune musubu kōri no tokenu kagiri wa - Kinyo Wakashu(English Translation & Meaning)

繋がねど流れも行かず高瀬舟
むすぶ氷の解けぬかぎりは

Roma-ji: Tsunaganedo nagare mo yukazu takasebune musubu kōri no tokenu kagiri wa
English Translation: Though no rope holds it,
it does not drift with the stream,
the shallow-boat,
so long as the binding ice
has yet to melt away
Meaning: Though it is not tied by any rope, the shallow boat does not drift with the current, so long as the ice that binds it does not melt.
Commentary: Book Four Winter Poems 296

Though not moored with a rope, the shallow boat does not drift away, because the ice has locked it in, and it will not move until the ice melts. Likening the ice to a mooring rope, the poem strings together the related words tsunagu, to tie up, musubu, to bind, and toku, to melt or untie.
Poem 271 in this book also sang of a shallow boat and ice, knowing the thin ice among the reeds by the sound of a pole. Here the ice holds the boat fast, and the two answer each other, marking the deepening of winter.

First line, 'tsunaganedo', means though it is not tied, using the concessive do.
Second line, 'nagare mo yukazu', means it does not drift with the current.
Third line, 'takasebune', is a flat-bottomed river boat that plies the shallows, the same word as the first line of poem 271 in this book. The poem breaks after the third line and the lower half is inverted.
Fourth line, 'musubu kōri no', means of the binding ice, musubu meaning both the forming of ice and the tying of a rope, related to tsunagu in the first line. 'Binding ice' (musubu kōri) is also sung in poem 272 in this book.
Final line, 'tokenu kagiri wa', means so long as it does not melt, toku also being a word related to musubu.
Source: Kinyo Wakashu
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