The Encyclopedia of Greek Language and Linguistics Online constitutes a thoroughly revised expansion of the Encyclopedia of Ancient Greek Language and Linguistics to encompass the entire history of Greek from Proto-Greek to modern times. The Encyclopedia provides an authoritative and comprehensive treatment of all important aspects of the language in its 3,500-year documented history, offering a systematic overview of the language on all levels and from many different angles and theoretical traditions.

About 65% of the content is brand new, while the remaining 35% consists of revised and expanded entries from the Encyclopedia of Ancient Greek Language and Linguistics.