Where does “reubarbe” come from?

reubarbe (Anglo-Norman) comes from Latin reubarbarum, from Koine Greek ῥῆον βαρβαρικόν, from Ancient Greek ῥῆον, from Middle Persian rēwand, from Middle Persian lypʾs, from Proto-Iranian (h)rabā́š, from Proto-Indo-Iranian (s)rabʰā́ćš, from Proto-Indo-Iranian -ā́ćš.

Ancestry of “reubarbe”, step by step

StepLanguageWordMeaning
1Latinreubarbarumrhubarb
2Koine Greekῥῆον βαρβαρικόν
3Ancient Greekῥῆονrhubarb
4Middle Persianrēwand
5Middle Persianlypʾsrhubarb
6Proto-Iranian(h)rabā́šrhubarb; fennel
7Proto-Indo-Iranian(s)rabʰā́ćš
8Proto-Indo-Iranian-ā́ćšanimal and plant suffix
9Proto-Indo-European-eḱés

Words derived from “reubarbe

Every word from Proto-Indo-European -eḱésEvery word from Proto-Indo-Iranian -ā́ćšEvery word from Proto-Indo-Iranian (s)rabʰā́ćš