What is "konistres"

Konistres is a village and a former municipality in Euboea, Greece. Since a local government reform in 2011, it has been part of the municipality of Kymi-Aliveri, of which it is a municipal unit. Population 4,077 (2001). Konistres emanates from the ancient word "Konistra". Konistra means palaistra (in Greek), which is a wrestling pitch.