1. past tense of overtrump: to surpass or defeat by playing a higher trump card in a card game
Usage: card games; often used in bridge or similar trick-taking games
2. past tense of overtrump: to surpass or outdo someone or something by using a superior strategy or advantage
Usage: figurative; informal

Examples

• She overtrumped his ace with the king of hearts.
• The competitor overtrumped our initial proposal with a better offer.
• In the final round, he overtrumped all previous bids.
• The team overtrumped their rivals' strategy with an unexpected defensive shift.
• When he played his trump card, she overtrumped it with an even higher one.
• The new technology overtrumped the old system in every measurable way.