Where does “roborandus” come from?

roborandus (Latin) comes from Latin rōborō, from Latin rōbur, from Latin ruber, from Proto-Italic ruðros, from Proto-Indo-European h₁rudʰrós, from Proto-Indo-European h₁rewdʰ- — red.

roborandus (Latin): which is to be strengthened

Definitions

  1. which is to be strengthened

Ancestry of “roborandus”, step by step

StepLanguageWordMeaning
1Latinrōborōto strengthen
2Latinrōburan oak tree
3Latinruberred approximately like red ochre (which had a traditional status among the Romans); red that was both common and dignified, somewhat associated with pigment
4Proto-Italicruðrosred
5Proto-Indo-Europeanh₁rudʰrósred
6Proto-Indo-Europeanh₁rewdʰ-red
Every word from Proto-Indo-European h₁rewdʰ-Every word from Proto-Indo-European h₁rudʰrósEvery word from Proto-Italic ruðros