The swiftness of the horse was very unsually. The young fighter fought with the swiftness of a professional fighter.
The swiftness of the animal was extraordinary.
Matilda was running with so much swiftness, I couldn't see her at all!
mercury
The word "tiger" was probably derived from the Greek word "Tigris". The Greeks possibly borrowed this word from a Persian word meaning "arrow", due to the animal's swiftness.
A boot.
rapidity of motion; swiftness
Foxes are known for there swiftness and sneakiness
It means quickness, swiftness.
The abstract noun is swiftness. All of the others are words for things you can see or touch.
The abstract noun for the adjective swift is swiftness.
swiftness, hurry, velocity, pace, acceleration.