Where does “deuto-” come from?

deuto- (English) comes from English deutero-, from Ancient Greek δεύτερος, from Proto-Indo-European dews- — to lack, need, require.

Ancestry of “deuto-”, step by step

StepLanguageWordMeaning
1Englishdeutero-second or secondary; containing deuterium
2Ancient Greekδεύτεροςsecond of two; second, next, another
3Proto-Indo-Europeandews-to lack, need, require

Words derived from “deuto-”

Every word from Proto-Indo-European dews- →Every word from Ancient Greek δεύτερος →Every word from English deutero- →