# thoroughwort

> English word · Noun

## Definitions
1. Any of several plants of the genus Eupatorium.
2. Common boneset (Eupatorium perfoliatum).

## Etymology
From thorough (“through”) + wort: the leaf bases are joined, so it looks like the stem is growing through a single leaf.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/thoroughwort