Frigg

In Germanic mythology, Frigg (Old Norse), Frija (Old High German), Frea (Langobardic), and Frige (Old English) is a goddess. In nearly all sources, she is described as the wife of the god Odin. In Old High German and Old Norse sources, she is also connected with the goddess Fulla. The English weekday name Friday (etymologically Old English "Frīge's day") bears her name.

Frigg is described as a goddess associated with foreknowledge and wisdom in Norse mythology, the northernmost branch of Germanic mythology and most extensively attested. Frigg is the wife of the major god Odin and dwells in the wetland halls of Fensalir, is famous for her foreknowledge, is associated with the goddesses Fulla, Lofn, Hlín, and Gná, and is ambiguously associated with the Earth, otherwise personified as an apparently separate entity Jörð (Old Norse "Earth"). The children of Frigg and Odin include the gleaming god Baldr. Due to significant thematic overlap, scholars have proposed a particular connection to the goddess Freyja.

After Christianization, mention of Frigg continued to occur in Scandinavian folklore. In modern times, Frigg has appeared in modern popular culture, has been the subject of art, and receives modern veneration in Germanic Neopaganism.

The theonyms Frigg (Old Norse) and Frija (Old High German) are cognate forms—linguistic siblings of the same origin—that descend from a substantivized feminine of Proto-Germanic *frijaz (via Holtzmann's law). *frijaz descends from the same source (Proto-Indo-European) as the feminine Sanskrit noun priyā and the feminine Avestan noun fryā (both meaning "own, dear, beloved"). In the modern period, an -a suffix is sometimes applied to denote femininity, resulting in the form Frigga. This spelling also serves the purpose of distancing the goddess from the English word frig.

...
Wikipedia