In linguistics, a koine or koiné language or dialect is a standard or common dialect that has arisen as a result of the contact, mixing, and often simplification of two or more mutually intelligible varieties of the same language.
Despite their different dialects, koineization in Ancient Greece enabled the various Greek political entities to maintain commercial and diplomatic relations.
Koiné Greek became the language of the Macedonian Empire; it was widely used as a second language.
Dialect refers to two distinctly different types of linguistic relationships.
The Books of Genesis of the Ukrainian Nation by Mykola Kostomarov