vanquish
to defeat completely
Root
- vinc / vict: conquer, overcome, or win
Other words with the vinc / vict root
- conviction: firm belief; a formal finding of guilt
- convince: to make someone believe or agree
- invincible: impossible to defeat
- victory: success after struggle or defeat of an opponent
Vanquish is conquest with a final feel: resistance has been overcome.
The argument vanquished her doubt because every objection had an answer.
Vanquish is stronger than win. It suggests overcoming an opponent, doubt, fear, or obstacle so fully that it no longer stands in the way.