Where does “purr” come from?

purr (Middle Persian) comes from Proto-Iranian pr̥Hnáh, from Proto-Indo-Iranian pr̥Hnás, from Proto-Indo-European pl̥h₁nós, from Proto-Indo-European pleh₁- — to fill.

Ancestry of “purr”, step by step

StepLanguageWordMeaning
1Proto-Iranianpr̥Hnáhfull, filled
2Proto-Indo-Iranianpr̥Hnásfull, filled
3Proto-Indo-Europeanpl̥h₁nósfull
4Proto-Indo-Europeanpleh₁-to fill

Words derived from “purr”

Every word from Proto-Indo-European pleh₁- →Every word from Proto-Indo-European pl̥h₁nós →Every word from Proto-Indo-Iranian pr̥Hnás →