Where does “ῥῆον βαρβαρικόν” come from?

ῥῆον βαρβαρικόν (Koine Greek) comes 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, from Proto-Indo-European -eḱés.

Ancestry of “ῥῆον βαρβαρικόν”, step by step

ῥῆον βαρβαρικόν traces back through two separate lines of ancestry.

via Ancient Greek ῥῆον

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

via Ancient Greek βαρβαρικός

StepLanguageWordMeaning
1Ancient Greekβαρβαρικόςbarbaric; non-Greek
2Ancient Greek-ικόςof or pertaining to, in the manner of; -ic
3Ancient Greek-κόςforms adjectives with the sense of 'of or...
4Proto-Indo-European-ḱos-y, -ic

Words derived from “ῥῆον βαρβαρικόν

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