Where does “Hertha” come from?

Hertha (Danish) comes from German Hertha, from Latin Nerthus, from Proto-Germanic Nerþuz, from Proto-Indo-European h₂nḗr — man; power, force, vital energy.

Ancestry of “Hertha”, step by step

StepLanguageWordMeaning
1GermanHertha—
2LatinNerthusA Germanic goddess (or god) mentioned by Tacitus and associated with a ceremonial wagon procession
3Proto-GermanicNerþuzA Germanic god or goddess: Njord, Nerthus
4Proto-Indo-Europeanh₂nḗrman; power, force, vital energy
Every word from Proto-Indo-European h₂nḗr →Every word from Proto-Germanic Nerþuz →Every word from Latin Nerthus →