Where does “nonrobust” come from?
nonrobust (English) comes from English robust, from Latin rōbustus, from Latin rōbur, from Latin ruber, from Proto-Italic ruðros, from Proto-Indo-European h₁rudʰrós, from Proto-Indo-European h₁rewdʰ- — red.
nonrobust (English): Not robust
Ancestry of “nonrobust”, step by step