What is the etymology of the word "Earth" ?

I was listening to the Arabic version of an English song which had the word "earth" in it, and i noticed that even in Arabic, the word sounded a lot like "earth" (it was something like "ard") too. They sounded a bit too much like each other for it to be a coincidence. Knowing that... show more I was listening to the Arabic version of an English song which had the word "earth" in it, and i noticed that even in Arabic, the word sounded a lot like "earth" (it was something like "ard") too. They sounded a bit too much like each other for it to be a coincidence. Knowing that English has borrowed many words from Arabic in the past, and Arabic is also borrowing a lot of words from English in the present, it made me wonder, which language borrowed from which? Or more basically, what is the etymology of the word?
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