* Δαιμόνιον (daimonion): This refers to a guiding spirit or divine power, often associated with inspiration and exceptional ability. This is probably the closest single word and often used in discussions of "genius" in a philosophical or artistic context.
* Γένιος (genios): This word means "genius" in the sense of a tutelary spirit or guardian deity, less applicable to describing a person's innate talent.
* Μέγας (megas): Meaning "great," this could be used to describe someone of great intellect or talent, but it's not specific to genius.
* Νους (nous): This refers to mind, intellect, or intelligence. A person with exceptional *nous* could be considered a genius.
The best choice depends heavily on the context. If you're talking about a creative genius, Δαιμόνιον is likely the best fit. If you're referring to an exceptionally intelligent person, Νους might be more suitable.