The lake lay in a caldera of Mount Othrys, and measured approximately 5 km × 7 km, with a depth of 5 m. It was named after the nearby city of Xyniae. In the Middle Ages, it received the Slavic name Ezeros, after which the city was also renamed.
The lake was drained in 1936–42 to create arable farmland.
- Kramolisch, Herwig. "Xynias". Brill’s New Pauly. Brill Online, 2015. Retrieved 20 September 2015.
- Koder, Johannes; Hild, Friedrich (1976). Tabula Imperii Byzantini, Band 1: Hellas und Thessalia (in German). Vienna: Verlag der Österreichischen Akademie der Wissenschaften. p. 159. ISBN 978-3-7001-0182-6.