Where does “und-” come from?

und- (Danish) comes from Middle Low German unt-, from Old Saxon and-, from Germanic *anda-, from Proto-Indo-European h₂énti, from Proto-Indo-European h₂énts, from Proto-Indo-European h₂ent-, from Proto-Indo-European h₂en- — on, onto.

Ancestry of “und-”, step by step

StepLanguageWordMeaning
1Middle Low Germanunt-—
2Old Saxonand-against, opposing; opposition; in return, back;...
3Germanic*anda-—
4Proto-Indo-Europeanh₂éntiopposite; near; in front
5Proto-Indo-Europeanh₂éntsforehead; front
6Proto-Indo-Europeanh₂ent-face; forehead; front
7Proto-Indo-Europeanh₂en-on, onto

Words derived from “und-”

Every word from Proto-Indo-European h₂en- →Every word from Proto-Indo-European h₂ent- →Every word from Proto-Indo-European h₂énts →