eta

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noun \ˈā-tə, chiefly British ˈē-tə\

Definition of eta

  1. :  the 7th letter of the Greek alphabet — see alphabet table

Origin and Etymology of eta

Middle English, from Late Latin, from Greek ēta, of Semitic origin; akin to Hebrew ḥēth heth


First Known Use: 15th century


ETA

abbreviation

Definition of ETA

  1. estimated time of arrival


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