Where does “der-drew-” come from?

der-drew- (Proto-Indo-European) comes from Proto-Indo-European dóru, from Proto-Indo-European drew- — hard, firm, strong, solid; hard, fast; tree.

Ancestry of “der-drew-”, step by step

StepLanguageWordMeaning
1Proto-Indo-Europeandórutree
2Proto-Indo-Europeandrew-hard, firm, strong, solid; hard, fast; tree
Every word from Proto-Indo-European drew-Every word from Proto-Indo-European dóru
der-drew- — Etymology, Origin & Word History | Etymology Explorer