Extinct

изгаснал

izgasnal

(of fire, etc.: no longer alight; of a light, etc.: no longer shining — see also extinguished, quenched)

изгаснал

izgasnal

(of a geological feature: no longer active; of a volcano: no longer erupting)

измрял

izmrjal

(of an animal or plant species, a class of people, a family, etc.: having died out completely; no longer in existence)

изтребвам

iztrebvam

(to cause (an animal or plant species) to die out completely or become extinct)