noun, noun which may take the genitive case particle 'no'
swiftness; fleetness of foot; swift horse
Formal or literary term for swift running or a fast horse. Often used in classical or elevated contexts.
outstanding talent; person of great talent
Formal or literary term for exceptional ability or a highly talented person. Rare in modern conversation.
No one could match his swiftness of foot.
A swift horse galloped across the battlefield.
He was acclaimed as the greatest talent of his time.
Composed of 逸 (escape, excel) and 足 (foot, leg). The exact historical derivation is uncertain, but the combination suggests 'surpassing feet' or 'excellent runner', extended metaphorically to outstanding talent.