Hrimgerdr

Hrimgerdr (Old Norse: Hrímgerðr [ˈhriːmˌɡerðz̠], "frost-Gerðr") is a gýgr (female giant) in Norse mythology.

Attestation
In Helgakviða Hjǫrvarðssonar, Hrímgerðr announces herself as the daughter of the jötunn Hati.

After the hero Helgi Hundingsbane kills her father, Hrímgerðr harasses him, and Atli Idmundsson engages her in a contest of flyting until she turns into stone in the sunrise.