Where does “rętownina” come from?

rętownina (Polish) comes from Polish rętowny, from German rind, from Old High German rind, from Proto-West Germanic hrinþ, from Proto-Germanic hrinþaz, from Proto-Indo-European ḱrént-os ~ ḱrn̥t-és-s, from Proto-Indo-European ḱerh₂- — head, top; horn.

Ancestry of “rętownina”, step by step

StepLanguageWordMeaning
1Polishrętowny
2Germanrindcow, bull, ox, head of cattle any bovine animal
3Old High Germanrindcattle
4Proto-West Germanichrinþhead of cattle
5Proto-GermanichrinþazA horned beast, as in a neat or ox
6Proto-Indo-Europeanḱrént-os ~ ḱrn̥t-és-s
7Proto-Indo-Europeanḱerh₂-head, top; horn
Every word from Proto-Indo-European ḱerh₂-Every word from Proto-Indo-European ḱrént-os ~ ḱrn̥t-és-sEvery word from Proto-Germanic hrinþaz