verb

be mistaken or incorrect; make a mistake.

the judge had erred in ruling that the evidence was inadmissible

make a mistake,be wrong,be in error,be mistaken,mistake,make a blunder,blunder,be incorrect,be inaccurate,misjudge,miscalculate,get things/something/it wrong,bark up the wrong tree,get the wrong end of the stick,be wide of the mark,slip up,screw up,blow it,foul up,goof,fluff something,make a hash of something,put one’s foot in it,make a boo-boo,drop a brick,boob,make a bloomer,bugger something up