Best of Wikipedia

The avocado is a tree native to the Caribbean, Mexico, South America and Central America. The name “avocado” also refers to the fruit of the tree that contains a pit which may be egg-shaped or spherical. The word “avocado” comes from the Nahuatl word āhuacatl (“testicle”, a reference to the shape of the fruit). Historically avocados had a long-standing stigma as a sexual stimulant and were not purchased or consumed by any person wishing to preserve a chaste image. Avocados were known by the Aztecs as “the fertility fruit”.