Where does “سپاهی” come from?

سپاهی (Classical Persian) comes from Persian سپاه, from Proto-Iranian *cwáHdah, from Proto-Indo-Iranian *ćwáHdʰaH, from Proto-Indo-European ḱwéh₁-dʰ-o-h₁.

Ancestry of “سپاهی”, step by step

StepLanguageWordMeaning
1Persianسپاهarmy
2Proto-Iranian*cwáHdaharmy
3Proto-Indo-Iranian*ćwáHdʰaH
4Proto-Indo-Europeanḱwéh₁-dʰ-o-h₁

Words derived from “سپاهی

Every word from Proto-Indo-European ḱwéh₁-dʰ-o-h₁Every word from Proto-Indo-Iranian *ćwáHdʰaHEvery word from Proto-Iranian *cwáHdah