English river name, from Celtic abona "river," from *ab- "water" (see afanc). Of the at least four rivers in England and two in Scotland that bear the name, Shakespeare's is the Warwickshire Avon.
range of hills between Scotland and England, named for one of them, The Cheviot, attested from 12c. as Chiviet. The name is of uncertain origin; the second element is perhaps Old English geat "gate." As a breed of sheep, 1815.