savant
Concise Oxford English Dictionary © 2008 Oxford University Press:
savant /ˈsav(ə)nt/ (or savante /ˈsav(ə)nt/)
▶noun a learned person.
– origin C18: Fr., lit. ‘knowing (person)’, pres. part. (used as n.) of savoir.
'savant' also found in these Oxford entries:

