Where does “hollow earther” come from?

hollow earther (English) comes from English earth, from Middle English erthe, from Old English eorþe, from Proto-West Germanic erþu, from Proto-Germanic erþō, from Proto-Indo-European h₁er- — earth.

hollow earther (English): Someone who believes the Earth is hollow

Definitions

  1. Someone who believes the Earth is hollow

Ancestry of “hollow earther”, step by step

hollow earther traces back through two separate lines of ancestry.

via English earth

StepLanguageWordMeaning
1EnglishearthSoil; Any general rock-based material; The...
2Middle EnglishertheEarth; the world; The Earth's people or...
3Old Englisheorþeground; the planet Earth; dirt
4Proto-West Germanicerþuearth, world; earth, soil
5Proto-Germanicerþōearth
6Proto-Indo-Europeanh₁er-earth

via English hollow

StepLanguageWordMeaning
1EnglishhollowA small valley between mountains; A sunken area...
2Middle EnglishholowAlternative form of holgh; Alternative form of...
3Old Englishholha hollow
4Proto-Germanic*hulhwą
Every word from Proto-Indo-European h₁er-Every word from Proto-Germanic erþōEvery word from Proto-West Germanic erþu