köken: Etymology tree Proto-Indo-European *sem-der.? Proto-Hellenic *ksún Ancient Greek σύν (sún) Ancient Greek συν- (sun-) Proto-Indo-European *steh₂- Proto-Indo-European *stísteh₂ti Proto-Hellenic *hístāmi Ancient Greek ἵστημι (hístēmi) Ancient Greek σῠνῐ́στημῐ (sŭnĭ́stēmĭ) Proto-Indo-European *-mn̥ Ancient Greek -μᾰ (-mă) Ancient Greek σύστημα (sústēma) Proto-Indo-European *-tis Ancient Greek -τις…