2 English words descend from Old Norse ægir, most common first.
ÆgirA giant and king of the sea, personifying the power thereof. He is the son of Fornjótr, and the brother of Logi and Kári. He has nine daughters — the billow maidens — by his wife, Rán, namely: Bára, Blóðughadda, Bylgja, Dúfa, Hefring, Himinglæva, Hrönn, Kólga, and Unnr.