Third-person singular simple present indicative form of prevail.(verb)
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Use "prevaileth" in a sentence
"DEMOCRATIE, and that prevaileth which is most agreeable to the senses and conceits of people."
"But nevertheless it doth fascinate, and bind hand and foot, those that are either shallow in judgment, or weak in courage, which are the greatest part; yea and prevaileth with wise men at weak times."
"From above hath he sent fire into my bones, and it prevaileth against them: he hath spread a net for my feet, he hath turned me back: he hath made me desolate and faint all the day."