From antiquity, Latin died but is still studied in seminaries and elite universities. So did Sanskrit in Asia. iI was replaced by Pali, but even Pali died, too. Linguists say the only ancient language which was resuscitated from the grave was Hebrew of Israel.
I am more and more convinced that man is a dangerous creature and that power, whether vested in many or a few, is ever grasping, and like the grave, cries, 'Give, give.'