Meaning

noun a new personification of a familiar idea

noun the manifestation of a Hindu deity (especially Vishnu) in human or superhuman or animal form

originFirst use appears c. 1784, in The Hindu Wife; or, The Enchanted Fruit, by William Jones. Borrowed from Hindustani अवतार (avtār) / اوتار (avtār), from Sanskrit अवतार (avatāra, “descent of a deity from a heaven”), a compound of अव (ava, “off, away, down”) and the vṛddhi-stem of the root तॄ (tṝ, “to cross”) (whence तरति (tarati)). In the computing sense, some use appeared in video games in the…

Etymology from Wiktionary, CC BY-SA 3.0