Where does “rollus” come from?

rollus (Medieval Latin) comes from Latin rota, from Proto-Italic rotā, from Proto-Indo-European Hróth₂-eh₂, from Proto-Indo-European Hreth₂- — to run.

Ancestry of “rollus”, step by step

StepLanguageWordMeaning
1Latinrotawheel; a car, a chariot; the disc of the sun
2Proto-Italicrotā
3Proto-Indo-EuropeanHróth₂-eh₂
4Proto-Indo-EuropeanHreth₂-to run

Words derived from “rollus

Every word from Proto-Indo-European Hreth₂-Every word from Proto-Indo-European Hróth₂-eh₂Every word from Proto-Italic rotā