Yr, the Third Anglo-Frisian Addition

Yr is the third of the five Anglo-Frisian runes added to the futhorc with no Elder Futhark cognate, its sound value y representing a front rounded vowel distinctive to Old English among the early Germanic languages, a further refinement the inherited twenty four rune row could not mark and one of the clearer linguistic reasons runologists give for why the Anglo-Saxon tradition needed to extend the row at all rather than simply continuing to use the older continental system unchanged.

R. I. Page's account notes that Yr's rune shape is itself sometimes read as visually suggestive of a strung bow, an inverted form of another rune in the row, though as with several other shape based readings noted across this account of the futhorc, Page treats the connection as plausible rather than certain given how limited the surviving evidence for the row's original graphic design principles actually is. Yr's position as the twenty seventh rune places it fourth from the row's very end, only Ior and Ear remaining to close the twenty nine rune sequence the surviving Old English Rune Poem records in full. Page notes that Yr appears in the epigraphic record considerably less often than the row's earlier, inherited runes, consistent with the general pattern that the five later Anglo-Frisian additions, representing rarer or more specialised sounds, were simply needed less often in ordinary runic writing.