Where does “robustful” come from?

robustful (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.

Ancestry of “robustful”, step by step

robustful traces back through two separate lines of ancestry.

via English robust

StepLanguageWordMeaning
1EnglishrobustEvincing strength and health; strong; Violent;...
2Latinrōbustusof oak, oaken
3Latinrōburan oak tree
4Latinruberred approximately like red ochre (which had a traditional status among the Romans); red that was both common and dignified, somewhat associated with pigment
5Proto-Italicruðrosred
6Proto-Indo-Europeanh₁rudʰrósred
7Proto-Indo-Europeanh₁rewdʰ-red

via English ful

StepLanguageWordMeaning
1Englishful

Words derived from “robustful

Every word from Proto-Indo-European h₁rewdʰ-