# exo-

> English word · Prefix · IPA /ɛksoʊ-/

## Definitions
1. outside; external
2. outside; external

## Etymology
From Ancient Greek ἔξω (éxō, “outer; external”).

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