eta

1 of 2

noun

ˈā-tə

chiefly British ˈē-tə

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

ETA

2 of 2

estimated time of arrival

Etymology

Noun

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

First Known Use

Noun

15th century, in the meaning defined above

Time Traveler

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

See more words from the same century

Style

“Eta.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/eta. Accessed 1 Dec. 2024.

Copy Citation

eta

noun

ˈāt-ə

: the seventh letter of the Greek alphabet

—Η or η

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