The idea that "rhubarb" has any meaning such as you state is entirely false (although widely reported). The Latin word for "root" is radix, from which the modern word radish comes.
In fact the name rhubarb comes from the classical Greek term rheo, meaning "to flow", referring to its laxative properties, plus Greek barbaros meaning foreign.
root of the barbarians
rhubarb.
Rhubarb
Rhubarb is the crop you are looking for
Rhubarb is from the Latin word meaning "root of barbarians." Though it's stalk is tart and good for cooking it's leaves can be toxic.
The Latin root is Posse meaning, to be able
The root of the word 'convert' is the Latin 'con' meaning 'altogether' and the Latin 'vertere' meaning 'turn.' This made up the Latin word 'convertere' meaning 'turn around.'
The Latin root of the word beneficiary comes from the Latin adverb "bene" meaning good.
the latin root CIP is in the word recipient
The English word derived from the Latin root meaning "to settle" is "sedentary."
The word "constrict" is based on a Latin root meaning to suffocate or squeeze.
The root is the Latin "vīvere," meaning "to live."