eta

noun
\ ˈā-tə How to pronounce eta (audio) , chiefly British ˈē-tə \

Definition of eta

 (Entry 1 of 2)

: the 7th letter of the Greek alphabet — see Alphabet Table

Definition of ETA (Entry 2 of 2)

estimated time of arrival

First Known Use of eta

Noun

15th century, in the meaning defined above

History and Etymology for eta

Noun

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

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The first known use of eta was in the 15th century

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Dictionary Entries Near eta

-et

eta

ETA

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Cite this Entry

“Eta.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/eta. Accessed 13 Aug. 2022.

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More from Merriam-Webster on eta

Britannica English: Translation of eta for Arabic Speakers

Britannica.com: Encyclopedia article about eta

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