verb (used with or without object) Cards.
to play a higher trump than has already been played.
Origin of overtrump
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
cards to play a trump higher than (one previously played to the trick)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012