Savitr vs Savitar

Savitr and Savitar both are nouns.

Word	Noun	Adjective	Verb	Adverb
Savitr	Yes	No	No	No
Savitar	Yes	No	No	No

As nouns, Savitr and Savitar are synonyms defined as:

Savitr and Savitar: an important Hindu god; the sun in its life-giving aspect

Savitr (noun)	Savitar (noun)
an important Hindu god; the sun in its life-giving aspect	an important Hindu god; the sun in its life-giving aspect