extinguish

verb

• 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.