Elsa
[ˈɛlsə]Meaning
short form of Elisabeth, used independently
Background Story
Elsa is a short form of Elisabeth, typically used independently. In medieval German tales Elsa von Brabant was the lover of the hero Lohengrin, and her story was expanded by Richard Wagner for his opera Lohengrin. The name had a small spike in popularity after the 2013 release of the animated Disney movie Frozen, which featured a magical princess by this name.
Variations
else, elsie

Related Names
Elma
Short form of Wilhelmine and of names ending in -elma, such as Anselma
Edel
From German edel, "noble", in the compound edelweiss.
Elke
Low German and Frisian diminutive of Adelheid; also a Yiddish feminine form of Elkanah
Emma
Short form of Germanic names beginning with irmin, "whole" or "great"
Adaliz
Adalyn
Variant of Adeline, a feminine given name meaning 'noble', of German origin
Adel
Persian form of Adil, and an alternate transcription of the Arabic name
Aliz
The Hungarian form of Alice, from the Old German for 'of noble kind'.
Arja
A name of Scandinavian origin meaning 'to be noble'
Arya
From an old Indo-Iranian root meaning "Aryan, noble"