I think Vidar, Odin's son, had a speech issue. He becomes the one who avenges his father's death and kills Fenrir.
A number of theories surround the figure, including
theories around potential ritual silence and a Proto-Indo-European basis.
Víđarr is introduced by the enthroned figure of High as "the silent god" with a thick shoe, that he is nearly as strong as the god Thor, and that the gods rely on him in times of immense difficulties.[6]
We do have that short story of the elves that hoard and/or repair shoes in the Dresden Files"
Georges Dumézil theorized that Víđarr represents a cosmic figure from an archetype derived from the Proto-Indo-Europeans.[19] Dumézil stated that he was aligned with both vertical space, due to his placement of his foot on the wolf's lower jaw and his hand on the wolf's upper jaw, and horizontal space, due to his wide step and strong shoe, and that, by killing the wolf, Víđarr keeps the wolf from destroying the cosmos, and the cosmos can thereafter be restored after the destruction resulting from Ragnarök.[19]