O.E., only in
frigedæg "Friday." In Gmc. religion, wife of Odin, goddess of heaven and married love, from O.N., lit. noun use of the fem. adj. meaning "beloved, loving, wife," from P.Gmc.
*frijaz "noble, dear, beloved" (from the root of O.E.
freogan "to love;" ult. from the root of
free (adj.)). Also cf.
Freya.