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 French gave us the word souvenir, from a verb meaning 'to remember, come to mind'.
It was first recorded as meaning 'something to help you remember a holiday or special event' in the late 1700s.