Where does “roboratus” come from?
roboratus (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.
roboratus (Latin): strengthened
Ancestry of “roboratus”, step by step