The phrase "past die" means that someone or something has reached a point of no return or has gone beyond the limit and cannot be saved or fixed. Full definition
But Leendertz says chimps migrating in from other areas may have made up for past die - offs. (sciencemag.org)
No fear, no die: Sally Potter's classic New Queer Cinema adaptation of Virginia Woolf emphasizes freedom from everything — except the past (filmcomment.com)
These evil barbaric things shouldn't even exsist in this modern day an age I am strictly against killing any perfectly adoptable animal but with the over population of animals in shelters due to sorry pet owners for not caring enough about their pets to have them spayed or neutered that if animals must be killed at least do it in a humane way No animal should have to die this Horrific way in the gas chamber We will continue fighting til these things are truly a thing of the past (animalrescuecorps.org)