Kaun and the Sixteen-Rune Reduction

Kaun is the sixth of the sixteen Younger Futhark runes, descending from Kenaz, the Elder Futhark's own sixth rune, its name shifting from the Old English and Elder Futhark's shared association with a torch or controlled flame to the considerably darker Younger Futhark reading of a sore or ulcer, one of the row's more substantial reinterpretations across the reduction, comparable in scale to Thorn's own shift between the Old English and Elder Futhark traditions discussed elsewhere in this survey.

Barnes' handbook notes that Kaun's sound value k in the Younger Futhark was stretched, like several of the row's other consonant signs, to cover both the voiced g and unvoiced k sounds of Old Norse, a single rune doing service for a phonetic distinction the language's spoken form still maintained even though the sixteen sign row no longer had a dedicated sign for each half of the pair. This kind of consonant merger, several related sounds sharing one rune, is among the clearest structural markers separating the economical Younger Futhark from both the Elder Futhark it descends from and the futhorc, which moved in the opposite direction, adding signs rather than collapsing them. This shift from Kenaz's controlled flame to Kaun's bodily affliction has no agreed explanation in the scholarship, and this entry states the change plainly as attested without offering a speculative bridge between the two readings the primary evidence does not itself supply.