verb
vanquish
VAN-kwish/ˈvæŋkwɪʃ/
To defeat completely.
The champion vanquishes her final opponent.

Etymology
Latin vincere meant 'overcome, conquer,' and vanquish originally described defeating an enemy in battle. That idea of conquest extends to decisive victory in competition or other struggles.
In context
Though Oedipus would dodge death, vanquish the monstrous Sphinx,
to work together to vanquish these organizations.
More examples
- The army vanquished the invading force.
- He hoped to vanquish his fear of public speaking.
- They celebrated after vanquishing their longtime rivals.
Forms
vanquish · vanquishes · vanquished · vanquishing