Hardenberg (Dutch) comes from Middle Dutch herde, from Middle Dutch -e, from Old Dutch -i, from Proto-West Germanic -ī, from Proto-Germanic -į̄, from Proto-Indo-European -íh₂, from Proto-Indo-European -h₂ — Creates collective nouns, which refer to groups...
Ancestry of “Hardenberg”, step by step
Hardenberg traces back through two separate lines of ancestry.