Where does “rēwand” come from?

rēwand (Middle Persian) comes 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 “rēwand”, step by step

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

Words derived from “rēwand

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