Where does “Robertus” come from?

Robertus (Latin) comes from Frankish Hrodebert, from Proto-Germanic Hrōþiberhtaz, from Proto-Germanic berhtaz, from Proto-Germanic hrabnaz, from Proto-Indo-European ḱorh₂-, from Proto-Indo-European ḱer-, from Proto-Indo-European kr̥-, from Proto-Indo-European ker- — army.

Ancestry of “Robertus”, step by step

Robertus traces back through two separate lines of ancestry.

via Frankish Hrodebert

StepLanguageWordMeaning
1FrankishHrodebert
2Proto-GermanicHrōþiberhtazshining glory
3Proto-Germanicberhtazbright, shining
4Proto-Germanichrabnazraven
5Proto-Indo-Europeanḱorh₂-
6Proto-Indo-Europeanḱer-to grow, to make grow, to nourish; to plait,...
7Proto-Indo-Europeankr̥-to turn, to bend
8Proto-Indo-Europeanker-army

via Frankish *Hrōþiberht

StepLanguageWordMeaning
1Frankish*Hrōþiberht

Words derived from “Robertus

Every word from Proto-Indo-European ker-