To be in love, where scorn is bought with groans; Coy looks with heart-sore sighs; one fading moment’s mirth With twenty watchful, weary, tedious nights: If haply won, perhaps a hapless gain; If lost, why then a grievous labour won: However, but a folly bought with wit, Or else a wit by folly vanquished.
There are no more uses of "vanquish" in the play.
Show samples from other sources
The team vanquished all competition.
You need to vanquish those negative thoughts and think about good things.