Nieuwenhagen (Dutch) comes from Dutch nieuw, from Middle Dutch niewe, from Old Dutch niuwi, from Proto-West Germanic niwi, from Proto-Germanic *niwjaz, from Proto-Indo-European néwyos, from Proto-Indo-European néwos, from Proto-Indo-European new- — new; to nod, assent to.
Ancestry of “Nieuwenhagen”, step by step
Nieuwenhagen traces back through two separate lines of ancestry.