Word Origin See more synonyms for woad on Thesaurus.com a European plant, Isatis tinctoria, of the mustard family, formerly cultivated for a blue dye extracted from its leaves. the dye extracted from this plant. Origin of woad before 1000; Middle English wode, Old English wād (cognate with German Waid); akin to French guède, Medieval Latin waizda < Germanic
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for woads a European plant, Isatis tinctoria, formerly cultivated for its leaves, which yield a blue dye: family Brassicaceae (crucifers) See also dyer's-weed, dyer's rocket the dye obtained from this plant, used esp by the ancient Britons, as a body dye Word Origin
wād; related to Old High German weit; Middle Dutch wēd, Latin vitrum
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for woads woad n.
wad, from Proto-Germanic *waido- (cf. Danish vaid, Old Frisian wed, Middle Dutch wede, Dutch wede, Old High German weit, German Waid "woad"), probably cognate with Latin vitrium "glass" (see vitreous). Old type of blue dye processed from plant leaves, since superseded by indigo. French guède, Italian guado are Germanic loan-words.
Online Etymology Dictionary, © 2010 Douglas Harper