# icosi-

> English word · Prefix

## Definitions
1. Alternative form of icosa-.

## Etymology
Learned borrowing from Ancient Greek εἴκοσι (eíkosi, “twenty”).

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