# Koine

> English word · Proper noun · IPA /ˈkɔɪneɪ/

## Definitions
1. The “common” Greek language that developed and flourished between 300 B.C.E. and 300 C.E. (the time of the Roman Empire), and from which Modern Greek descended. It was based on the Attic and Ionian dialects of Ancient Greek.

## Etymology
Borrowed from Ancient Greek Κοινή (Koinḗ), from ἡ κοινὴ διάλεκτος (hē koinḕ diálektos, “the common dialect”), from κοινός (koinós, “shared, common, public, general, ordinary, usual”). Doublet of koinon.

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