What is the X in X-mas?
goddess of love and beauty in Norse mythology, Old Norse Freyja, related to Old English frea "lord," Old Saxon frua, Middle Dutch vrouwe "woman, wife," German Frau; see frau).
Frigga is usually considered the goddess of married love; Freya, the goddess of love, the northern Venus. Actually, Frigga is of the Aesir family of Scandinavian myth; Freya, of the Vanir family; the two lines of belief merged, and the two goddesses are sometimes fused, and sometimes confused. [Joseph T. Shipley, "The Origins of English Words," 1984]