Any of various usually thorny trees or shrubs of the genus Crataegus of the rose family, having clusters of white or pinkish flowers and reddish fruits containing a few one-seeded nutlets.
[Middle English, from Old English hagathorn : haga, haw + thorn, thorn.]
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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.