Grid

Frost-giantess. Grid ("peace") was the friendly giantess who warned Thor of Geirrod's treachery. Thor was going to the home of Geirrod unarmed, since Loki had persuaded Thor to leave Mjollnir at home. Grid gave Thor her magic staff (Grídarvöl), as well as her own pair of iron gloves (Járngreipr) and her girdle of might (Megingjord). Thor used Grid's gifts to defeat and kill Geirrod and her evil daughters. See Geirrod in Of Thor and the Giants.

Grid was the mother of Vidar by Odin. Grid made special shoes for her son, which Vidar wore and defeated Fenrir, at Ragnarök.