Meanings
plural thoroughworts
- countableuncountableAny of several plants of the genus Eupatorium.
- countableuncountableCommon boneset (Eupatorium perfoliatum).
Synonyms & antonyms
nounperennial herb of southeastern United States having white-rayed flower heads; formerly used as in folk medicine
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
From thorough (“through”) + wort: the leaf bases are joined, so it looks like the stem is growing through a single leaf.
Full word history & related roots →Cite this entry
thoroughwort. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/thoroughwort
“thoroughwort.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/thoroughwort. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “thoroughwort,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/thoroughwort.
Source: thoroughwort on Wiktionary, CC BY-SA 4.0.