Mögþrasir

In Norse mythology, Mögþrasir (Old Norse: Mǫgþrasir, possibly meaning "the one who is striving for sons" ) is a jötunn who is solely attested in stanza 49 of the poem Vafþrúðnismál from the Poetic Edda.

Vafþrúðnismál
Mögþrasir is mentioned during the contest of wisdom between Odin and the giant Vafþrúðnir (here anglicized as Mogthrasir):

Theories
According to Carolyne Larrington, the identities of these maidens are uncertain but they are probably the Norns. If this is the case, then Mögþrasir is either their father or is being used as a kenning to indicate the Norns' kinship with the jötnar.