Donkey - Scientific and Common Names

Scientific and Common Names

Traditionally, the scientific name for the donkey is Equus asinus asinus based on the principle of priority used for scientific names of animals. However, the International Commission on Zoological Nomenclature ruled in 2003 that if the domestic species and the wild species are considered subspecies of each other, the scientific name of the wild species has priority, even when that subspecies was described after the domestic subspecies. This means that the proper scientific name for the donkey is Equus africanus asinus when it is considered a subspecies, and Equus asinus when it is considered a species.

At one time, the synonym ass was the more common term for the donkey, as in jackass, meaning "male donkey". The first recorded use of donkey was in 1784 or 1785. While the word ass has cognates in most other Indo-European languages, donkey is an etymologically obscure word for which no credible cognate has been identified. Hypotheses on its derivation include the following:

  • Perhaps from Spanish, for its don-like gravity; the donkey was also known as "the King of Spain's trumpeter"
  • Perhaps a diminutive of dun (dull grayish-brown), a typical donkey colour.
  • Perhaps from the name Duncan.
  • Perhaps of imitative origin.

From the 18th century, donkey gradually replaced ass. The change may have come about through a tendency to avoid pejorative terms in speech, and be comparable to the substitution in North American English of rooster for cock, or that of rabbit for coney, which was formerly homophonic with cunny. By the end of the 17th century, changes in pronunciation of both ass and arse had caused them to become homophones. Other words used for the ass in English from this time include cuddy in Scotland, neddy in southwest England and dicky in the southeast; moke is documented in the 19th century, and may be of Welsh or Gypsy origin. In the United States, the Spanish burro is used both specifically for the feral donkeys of Arizona, California and Nevada, and, west of the Mississippi, generically for any small or standard donkey.

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