eradicate

Verb

• destroy completely, as if down to the roots
  • the vestiges of political democracy were soon uprooted root out corruption
    

• kill in large numbers
  • the plague wiped out an entire population
    

Related words

• Synonyms: 
  uproot , extirpate , root out , exterminate , eliminate , annihilate , extinguish , wipe out , decimate , carry off