Translation of "vighet" into English

Hermelinens vighet, uppövad ända sen den var liten räckte för att ge den övertaget.

The incredible agility of the stoat, practised since it was a kit, was just enough to swing the balance.

Men detta livliga djur kompenserar sin litenhet genom sin vighet och snabbhet.

But this nimble animal makes up for its smallness in maneuverability and speediness.