vi to persuade or induce;
with on, upon, or with; as, i prevailedon him to wait.
2. prevail ·vi to be in force; to have effect, power, or influence; to be predominant; to have currency or prevalence; to obtain; as, the practice prevails this day.
3. prevail ·vi to overcome; to gain the victory or superiority; to gain the advantage; to have the upper hand, or the mastery; to succeed;
sometimes with over or against.