Futhorc
Ur is the English aurochs, the poem's fierce creature that fights with its horns and roams the moor. The letter kept the animal the Norse one lost. Today the rune is courage of the untamed kind: not bravery decided on, but the thing that moves before deciding. There is a moment today where the sharpest tool you have is the one to use, directly, without the preamble. Use it. The aurochs does not explain the horns. The warning is the same as ever: the strength is not for holding, only for aiming.