1. A wild ass (Equus hemionus) of Asia, having an erect mane, a light brown coat, and a dark stripe along the back.
2. An ancient and medieval catapult, often employing a wooden arm with a short sling.
[Middle English, from Late Latin, from Latin, wild ass, from Greek onagros : onos, ass; see ASININE + agrios, wild; see agro- in the Appendix of Indo-European 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.