# rhubarb

> English word · Noun · IPA /ˈɹuːbɑːb/ · frequency rank #30,205

## Definitions
1. Any plant of the genus Rheum, especially Rheum rhabarbarum, having large leaves and long green or reddish acidic leafstalks that are edible, in particular when cooked (although the leaves are mildly poisonous).
2. The leafstalks of common rhubarb or garden rhubarb (usually known as Rheum × hybridum), which are long, fleshy, often pale red, and with a tart taste, used as a food ingredient; they are frequently stewed with sugar and made into jam or used in crumbles, pies, etc.
3. The dried rhizome and roots of Rheum palmatum (Chinese rhubarb) or Rheum officinale (Tibetan rhubarb), from China, used as a laxative and purgative.
4. A Royal Air Force World War II code name for operations by aircraft (fighters and fighter-bombers) involving low-level flight to seek opportunistic targets.
5. A ditch alongside a road or highway.

## Etymology
From Middle English rubarbe, from Anglo-Norman reubarbe (modern French rhubarbe), from Late Latin reubarbarum, rheubarbarum, rubarbera, rybarba, probably from Koine Greek ῥῆον βάρβαρον (rhêon bárbaron), from ῥῆον (rhêon, “rhubarb”) + Ancient Greek βάρβαρον (bárbaron), neuter of βάρβαρος (bárbaros, “foreign; barbaric”) (English barbarian).
There is also a Medieval Latin variant rabarbarum, which appears to be influenced by Ancient Greek ῥᾶ (rhâ, “rhubarb”), and gave rise to some of the forms in modern languages. The Ancient Greek variant term appears to have been folk-etymologically influenced by Ancient Greek Ῥᾶ (Rhâ, “the River Volga”), which is in the region from which the plant came to the Mediterranean. The ultimate origin of the Ancient Greek terms is, however, Proto-Iranian *(h)rabā́š (“rhubarb, fennel”).
The word is cognate with Catalan ruibarbre, Italian rabarbaro, Dutch rabarber, German Rhabarber, Old Occitan reubarbe, Portuguese ruibarbo, Spanish ruibarbo.

## Common misspellings (11)
`hrubarb`, `rhbuarb`, `rhhubarb`, `rhuabrb`, `rhubabr`, `rhubarbb`, `rhubarrb`, `rhubbarb`, `rhubrab`, `rrhubarb`, `ruhbarb`

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