Wurdahuzdą: Proto-Germanic dictionary — *Nerþuz Scott K. Shay Wardja Press https://protogermanic.org/pgmc_nerþuz

Single-entry extract from the dictionary. Cross-references to other entries point to their identifiers in the full dictionary.

 *h₂nḗr power, vitality, force सूनृत
sūnṛtá
pleasant nert strength
Nerþuz ˈner.θuz ᚾᛖᚱᚦᚢᛉ
propn masculine u-stem A Germanic god or goddess: Njord, Nerthus. Unknown. Possibly a derivative of Proto-Indo-European *h₂nḗr (‘power, vitality, force’). Compare Old Irish nert (‘strength’), Sanskrit सूनृत (sūnṛtá, ‘pleasant’) (< *Hsu-Hnr̥tás), Old English (ġe-)neorð (‘contented’); for the suffix, see *-þuz. More at Njörðr, Njörun, and Nerthus.

Attested as feminine (Tacitus's dea Nerthus), but the reconstructed PGmc u-stem form and the later masculine Norse reflex (Njörðr) leave the original grammatical gender disputed; recorded here as masculine.
Nerþuz
Nerþų
Nerþauz
Nirþiwi
Nerþū
Nerþu
Old Norse Njǫrðr Danish Njørd, Njord
English Njorth, Njord
Faroese Njørður
Icelandic Njörður
Norwegian Nynorsk Njord, Njor
Swedish Njärd, Njord
Latin Nerthus