# polygonum

> English word · Noun

## Definitions
1. Any of many plants, of the family Polygonaceae, embracing a large number of species, including bistort, knotweed, smartweed, etc.

## Etymology
From translingual Polygonum, from Ancient Greek πολύγονον (polúgonon, “knotweed”), from πολύς (polús, “many”) + γόνυ (gónu, “knee”), so called in allusion to the numerous joints, or neuter of πολύγονος (polúgonos, “prolific”), from πολύς (polús, “many”) + γόνος (gónos, “offspring”). Related to polygon (from γωνία (gōnía, “corner, angle”), a derivative of γόνυ (gónu)).

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