cavendish · noun1
Possibly from the name of the original manufacturer.
Cavendish · proper noun, noun2
* (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.
Etymology from Wiktionary, CC BY-SA 4.0.