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.
Vampire is a word of Slavonic origin.
It first appeared in English in the 18th Century, though tales of supernatural beings, who consumed the blood or flesh of the living, existed earlier than that. Watch out for vampires.