# Eos

> English word · Proper noun · IPA /ˈiːɒs/ · frequency rank #21,511

## Definitions
1. The Greek goddess of the dawn; daughter of Hyperion and Theia, sister of Helios and Selene, wife of Astraeus (god of the dusk), and mother of the four Anemoi ("Winds"), and the five Astra Planeta ("Wandering Stars/Planets"). Her Roman counterpart is Aurora.
2. The dawn.

## Etymology
From Ancient Greek Ἠώς (Ēṓs, “Greek goddess of the dawn”), from ἠώς (ēṓs, “dawn, daybreak; morning; day; east”). Doublet of Aurora.

## Easily confused with
- **ex** (https://plainspell.com/en/vs/eos-vs-ex)
- **et** (https://plainspell.com/en/vs/eos-vs-et)
- **EU** (https://plainspell.com/en/vs/eos-vs-eu)
- **er** (https://plainspell.com/en/vs/eos-vs-er)
- **EP** (https://plainspell.com/en/vs/eos-vs-ep)
- **ES** (https://plainspell.com/en/vs/eos-vs-es)
- **EV** (https://plainspell.com/en/vs/eos-vs-ev)
- **ew** (https://plainspell.com/en/vs/eos-vs-ew)
- **ey** (https://plainspell.com/en/vs/eos-vs-ey)
- **ez** (https://plainspell.com/en/vs/eos-vs-ez)
- **eye** (https://plainspell.com/en/vs/eos-vs-eye)
- **era** (https://plainspell.com/en/vs/eos-vs-era)
- **eve** (https://plainspell.com/en/vs/eos-vs-eve)
- **est** (https://plainspell.com/en/vs/eos-vs-est)
- **EPA** (https://plainspell.com/en/vs/eos-vs-epa)
- **EVA** (https://plainspell.com/en/vs/eos-vs-eva)
- **EPS** (https://plainspell.com/en/vs/eos-vs-eps)
- **err** (https://plainspell.com/en/vs/eos-vs-err)
- **eta** (https://plainspell.com/en/vs/eos-vs-eta)
- **ESA** (https://plainspell.com/en/vs/eos-vs-esa)

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/eos