Madr is the fourteenth of the sixteen Younger Futhark runes, descending from Mannaz, the Elder Futhark's own twentieth rune, its core meaning of humankind carried forward closely across all three runic traditions this survey has covered, one of the more stable and universal concepts in the whole runic vocabulary, requiring no reinterpretation to remain meaningful from the Elder Futhark's earliest attestations through to the Younger Futhark's own medieval commentary centuries later.
Barnes' handbook notes Madr's sound value m as another of the row's phonetically stable consonants, unchanged in essential value across every runic tradition surveyed here, and its letterform, a simple angled or X like stroke depending on the specific long branch or short twig variant used, shows the same kind of minor regional variation already noted for Reid and other Younger Futhark signs without any change to the rune's core sound or meaning. Madr's position fourteenth of sixteen places it within the row's final stretch, following Bjarkan and preceding only Lögr and Yr before the sequence closes.
Barnes notes that Mannaz's continuity across the Elder Futhark, the futhorc and the Younger Futhark alike mirrors Isa's and Sol's own stability, humankind and the natural world both proving more durable subjects across the runic traditions' many centuries than the more abstract or narrowly cultural concepts several other runes carry.