Where does “πλέγμα” come from?

πλέγμα (Greek) comes from Ancient Greek πλέγμα, from Ancient Greek πλέκω, from Finnish pleko, from Proto-Indo-European pleḱ-, from Proto-Indo-European pel- — to cover, to wrap; skin, hide, cloth; to fold.

πλέγμα (Greek): network, braid; network