woad
/wōd/
noun:
woad
1. a yellow-flowered European plant of the cabbage family. It was formerly grown as a source of blue dye, which was extracted from the leaves after they had been dried, powdered, and fermented.
∙ the dye obtained from the woad plant, now superseded by synthetic products.
Old English
wād, of Germanic origin; related to Dutch
wede and German
Waid.
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