Meaning

noun someone who has exceptional intellectual ability and originality

noun unusual mental ability

noun someone who is dazzlingly skilled in any field

originFrom Latin genius (“inborn nature; a tutelary deity of a person or place; wit, brilliance”), from gignō (“to beget, produce”), Old Latin genō, from the Proto-Indo-European root *ǵenh₁-. Doublet of genio. See also genus and genie.

Etymology from Wiktionary, CC BY-SA 3.0