Etymology
1. Etymology tree
2. Proto-Indo-European *h₁er-der.
3. Proto-Germanic *erþō
4. Proto-West Germanic *erþu
5. Old English eorþe
6. Middle English erthe
7. English earth
8. From Middle English erthe, from Old English eorþe, from Proto-West Germanic *erþu, from Proto-Germanic *erþō (“dirt, ground, earth”), from Proto-Indo-European *h₁érteh₂ (“earth”).
9. Cognates
10. Cognate with Scots erd, yerd, yird, yirth (“earth, loam, mould, soil; ground”), Yola eard, eart, eord, eorth, erth (“earth”), North Frisian eerd, eerde, iarde, Iart, iir, jard, örd, Öört (“earth; world”), Saterland Frisian Idde, Äid, Äide (“earth; soil; ground”), West Frisian ierde (“earth; soil; ground”), Alemannic German Ëërde (“earth”), Bavarian Erd, Erdn (“world; soil; ground”), Central Franconian Ääd (“earth”), Cimbrian èerda (“earth”), Dutch aard, aarde (“earth”), German Erde (“earth; soil; ground; world”), German Low German Eer (“earth”), Limburgish eerd (“earth”), Luxembourgish Äerd (“earth; soil”), Vilamovian Ād (“earth”), Yiddish ערד (erd, “earth; soil”), Danish, Norwegian Bokmål, Norwegian Nynorsk, and Swedish jord (“earth”), Faroese jørð (“earth”), Icelandic jörð (“earth”), Norn yurn (“the earth”), Gothic 𐌰𐌹𐍂𐌸𐌰 (airþa, “earth”); also Latin ōra (“border, edge, rim”), Breton erv (“ridge between furrows”), Welsh erw (“acre”), Ancient Greek ἔραζε (éraze, “to the ground”), Lithuanian erdvė (“expanse, space”), Albanian varr, vorr (“grave”), Tocharian B āre (“dust, loose earth”), Sanskrit उर्वरा (urvarā, “fertile soil, field yielding crops”), Hittite 𒅕𒄩𒀸 (er-ḫa-aš /erḫaš/, “border, boundary, line”).
11. Probably unrelated, but of unknown etymology, is Old Armenian երկիր (erkir, “earth”). Likewise, the phonologically similar Proto-Semitic *ʔarṣ́- – whence Arabic أَرْض (ʔarḍ), Hebrew אֶרֶץ (ʾereṣ) – is probably unrelated. See: Scots '
erd', Frisian, Saterlandic 'Idde', Alemannic German '
Ëërde'.