Elsa

Elsa is a short form of Elisabeth, a name ultimately derived from the Hebrew Elisheba, meaning my God is an oath or my God is abundance. It developed independently as a given name in German and Scandinavian traditions, gaining wide use across northern Europe during the medieval period. The name is closely associated with the heroine of Richard Wagner's 1850 opera Lohengrin and gained renewed global recognition through the Disney animated film Frozen. Related forms include Else, Elise, Ilsa, and Elisabeth.