Where does “onvoldoend” come from?

onvoldoend (Dutch) comes from Dutch on-, from Middle Dutch on-, from Old Dutch un-, from Proto-West Germanic un-, from Proto-Germanic un-, from Proto-Indo-European n̥-, from Proto-Indo-European ne — not.

Ancestry of “onvoldoend”, step by step

StepLanguageWordMeaning
1Dutchon-un-, in-; on, without
2Middle Dutchon-un-, in-
3Old Dutchun-—
4Proto-West Germanicun-not, un-
5Proto-Germanicun-not, un-
6Proto-Indo-Europeann̥-not, un-
7Proto-Indo-Europeannenot
Every word from Proto-Indo-European ne →Every word from Proto-Indo-European n̥- →Every word from Dutch on- →