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• eta
  eta

  noun

  the seventh letter of the Greek alphabet (H, η).
• E.T.A.
  E.T.A.

  abbreviation

  estimated time of arrival.
• ETA
  ETA

  abbreviation

  estimated time of arrival

eta

¹ American  

[ey-tuh, ee-tuh] / ˈeɪ tə, ˈi tə /

noun

1. the seventh letter of the Greek alphabet (H, η).

2. the vowel sound represented by this letter.

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E.T.A. ² American  

Or ETA

abbreviation

1. estimated time of arrival.

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ETA ¹ British  

abbreviation

1. estimated time of arrival

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ETA ² British  

/ ˈɛtə /

acronym

1. Euzkadi ta Askatsuna: an organization of militant Basque nationalists attempting to gain independence for the Basques, esp those ruled by Spain, until a ceasefire in 1998, by means of guerrilla warfare

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eta ³ British  

/ ˈiːtə /

noun

1. the seventh letter in the Greek alphabet (Η, η), a long vowel sound, transliterated as e or ē

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eta ⁴ British  

/ ˈeɪtə /

noun

1. (in Japan, formerly) a member of a class of outcasts who did menial and dirty tasks

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Etymology

Origin of eta

< Greek êta; compare Hebrew ḥeth heth

Example Sentences

But other variants – eta, theta, iota – were quickly steamrolled and are now irrelevant.

From Seattle Times • Dec. 14, 2021

The importance of those men dressed in white is clearly shown by the symbol that looks like an H, the Greek letter eta.

From National Geographic

Among 44 men who were intensely concerned with their athletic ability, Little reports in the journal A eta Psychiatrica Scandinavica, 32 suffered from neuroses that had been set off by physical ailments.

From Time Magazine Archive

Status Symbol The H on the men’s clothing is the Greek letter eta.

From National Geographic

As for the eta proper, their condition and calling are too familiar to need comment in this connection.

From Kokoro Japanese Inner Life Hints by Hearn, Lafcadio