Where does “Muhammadanism” come from?
Muhammadanism (English) comes from English Muhammadan, from English Muhammad, from Arabic مُحَمَّد, from Classical Persian جَان, from Middle Persian 𐫃𐫏𐫀𐫗, from Proto-Iranian *wyaHnáH, from Proto-Indo-Iranian wyaHnás, from Proto-Indo-European h₂enh₁‑.
Ancestry of “Muhammadanism”, step by step