First Known Use: 15th century
Dictionary
eta
noun \ˈā-tə, chiefly British ˈē-tə\
Definition of ETA
: the 7th letter of the Greek alphabet — see alphabet table
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Origin of ETA
Middle English, from Late Latin, from Greek ēta, of Semitic origin; akin to Hebrew ḥēth heth
ETA
abbreviation
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