Vitharr vs Vidar

Vitharr and Vidar both are nouns.

Word	Noun	Adjective	Verb	Adverb
Vitharr	Yes	No	No	No
Vidar	Yes	No	No	No

As nouns, Vitharr and Vidar are synonyms defined as:

Vitharr and Vidar: (Norse mythology) one of the Aesir; son of Odin; avenges his parent by slaying Fenrir at Ragnarok

Other synonyms of Vitharr include Vithar.

Vitharr (noun)	Vidar (noun)
(Norse mythology) one of the Aesir; son of Odin; avenges his parent by slaying Fenrir at Ragnarok	(Norse mythology) one of the Aesir; son of Odin; avenges his parent by slaying Fenrir at Ragnarok