hare

No doubt you've heard Aesop's fable about the speedy hare and the plodding tortoise. The hare may have lost that race due to a tactical error (stopping to take a nap before reaching the finish line), but the long-eared mammal's overall reputation for swiftness remains intact. It's no surprise, then, that hare is used as a verb meaning "to move quickly." The noun hare (which refers, in its most specific zoological sense, to a member of the genus Lepus, whose young are usually able to hop a few minutes after birth) is a very old word. It first appeared as hara in a Latin-Old English glossary around the year 700. The verb was in use by the end of the 19th century, and people have been "haring off" and "haring about" ever since.