Earth (English)

Where does "Earth" come from?

The English word 'earth' descends from Old English 'eorþe', which itself came from Proto-Germanic '*erþō'[1][2]. Its Middle English form 'erthe' is the direct stage between the Old English and modern spellings[1][4]. Behind the Germanic forms lies a Proto-Indo-European root, reconstructed as '*h₁er-' with the sense 'earth'[1], which passed into Proto-Germanic through a stage recorded as Proto-West Germanic 'erþu'[5]. The same word also gave the modern sense of the planet on which people live, while the older meaning of soil or ground persisted alongside it.

Open questions

The Proto-Indo-European form is given in different shapes across sources, with '*h₁er-' in the main entry and '*h₁érteh₂' in the Proto-Germanic entry, so the exact reconstructed root is not fully settled. [1] [3]
The Proto-West Germanic form 'erþu' is a reconstructed intermediate stage known only from comparison, so its exact place in the chain is inferred rather than attested. [2] [5]

Full etymology tree

Earth (English), 'The third planet of the Solar System; the world upon which humans live.'
- inherited erthe (Middle English), 'Earth; the world'
  - inherited eorþe (Old English), 'ground'
    - inherited *erþu (Proto-West Germanic), 'earth, world'
      - inherited *erþō (Proto-Germanic), 'earth'
        inherited *h₁énteh₂ (Proto-Indo-European)

Ancestors

*h₁er- (Proto-Indo-European)
erthe (Middle English)
eorþe (Old English)
*erþō (Proto-Germanic)

Descendants and derived words

Dying Earth (English)
Earthan (English)
Earthan (English)
Earth current (English)
Earth Day (English)
Earther (English)
Earth-grazer (English)
Earth-grazing (English)
Earth-grazing fireball (English)
Earth Guardian (English)
Earthian (English)
Earthian (English)

Related words

Sources

Updated October 2026

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Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris