A contagious disease of horses, asses, and mules caused by the protozoan parasite Trypanosoma equiperdum, which is transmitted during copulation.
[French, from Arabic darina, mangy (said of a female camel), feminine of darin, dirty, from darina, to be dirty; see drn in the Appendix of Semitic roots.]
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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:
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.