Last updated at 16:43 BST, Tuesday, 10 September 2013
The word avocado comes from the Spanish 'aguacate'. The fruit is sometimes called an avocado pear or alligator pear because of its shape and texture.
The word tennis comes from the French word 'tenez' which can be translated as 'receive!' Players used to shout this out to each other just before they served, something that would not be tolerated in today's game!
