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thor·ough·bred

(thûrō-brĕd′, thûrə-, thŭr-)

1. A purebred or pedigreed animal, especially a horse.

2. Thoroughbred Any of a breed of horses, bred chiefly for racing, originating from crosses between Arabian stallions and English mares.

3. A well-bred person.

adj.

1. Bred of pure stock; purebred.

2. Thoroughbred Relating or belonging to horses of the Thoroughbred.

3. Thoroughly trained or educated; well-bred.

Indo-European & Semitic Roots Appendices

Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

Indo-European Roots

Semitic Roots

The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.

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