Ellisif and its variations are used worldwide, especially in countries like Norway, Sweden, Iceland, and others. In the Norwegian language, the meaning of Ellisif is 'consecrated to God,' and it is traditionally a feminine name. But, originally, Ellisif is derived from the Biblical Greek Elisábet, a version of the Hebrew name Elisheva, which is made up of two elements: 'el' (God, the God of Israel) and 'sh’vu’a (sh-b-)' (oath). The meaning of the name itself is 'my God is an oath.' Shavu'ót is a Jewish spring harvest festival that also commemorates the anniversary of the Ten Commandments being given to the Biblical Moses and the Israelites at Mount Sinai. Ellisif was cast as a character in the show 'Vikings'. She was the princess which King Harald speaks of when he declared his wish to be king of all of Norway to Queen Aslaug. After being rebuffed, he told her that he would not shave his hair until he became king of the entire kingdom, at which point he would be eligible to marry Elisif.