Etymology
* (English village): "Cāfna's enclosure", from Old English personal name *Cāfna + edisċ (“pasture”); recorded as Kauanadisc in 1086 (DB).
* (in Vermont): Likely named after William Cavendish, 4th Duke of Devonshire.
* (banana): Named after William Cavendish, 6th Duke of Devonshire.