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Definition walnut

Etymology

From Middle English walnote, walnutte, walnotte, walnote, from Old English walhhnutu (“walnut”, literally “foreign nut”), from Proto-Germanic *walhaz (“Celt, Roman, foreigner”) (whence Walloon, Welsh) + *hnuts (whence nut). Cognate with Dutch walnoot, German Walnuss, Swedish valnöt, Icelandic valhnota. Compare more recent term Welsh onion, which also uses Welsh to mean “foreign”.

Noun

walnut (usually uncountable, plural walnuts)

1. A hardwood tree of the genus Juglans.
2. A nut of the walnut tree.
3. Wood of the walnut tree.
4. Dark brown colour, the colour of walnut wood.