thoroughwort

thor·ough·wort

[thur-oh-wurt, -wawrt, -uh-wurt, -uh-wawrt, thuhr-]
noun

Origin:
1805–15, Americanism; thorough + wort2

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Encyclopedia Britannica
Encyclopedia

thoroughwort

any of about 40 species of herbaceous plants constituting the genus Eupatorium of the composite family Asteraceae, native primarily to tropical America. The North American plant known as boneset is E. perfoliatum, also known as agueweed and Indian sage. It is common in wet places and is a coarse, rough, hairy perennial about 0.6 to 1.8 metres (2 to 6 feet) high. Its lance-shaped, toothed, and wrinkled leaves are joined together at their bases around the stem. In August the plants bear small, tubular, white flowers in numerous heads that form a flat and branched cluster

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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00:10
Thoroughwort is always a great word to know.
So is zedonk. Does it mean:
the offspring of a zebra and a donkey.
a scrap or morsel of food left at a meal.
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