Pre-Greek (n.)

by 1996, a modern term for what linguists had called "Pelasgian," the substrate language spoken in Greece before the Greeks arrived and from which they apparently borrowed many words. "Pelasgian" was considered a dialect of Indo-European, but now "it is generally agreed that the substrate was non-Indo-European" [Beekes], at least by Beekes. Earlier as an adjective in reference to religion, culture, etc. of the region before the arrival of the historical Greeks.