extinguish
/ɪkˈstɪŋ.ɡwɪʃ/
To put out, as in fire; to end burning; to quench
To destroy or abolish something
She extinguished all my hopes.
To obscure or eclipse something
The rays of the sun were extinguished by the thunder clouds.
To bring about the extinction of a conditioned reflex
Many patients can extinguish their phobias after a few months of treatment.
To hunt down (a species) to extinction
To die out.