Err

Verb

 * 1)  To make a mistake.
 * He erred in his calculations, and made many mistakes.
 * 1)  To sin.
 * 2)  to stray.

Thesaurus
backslide, be in error, be mistaken, be wrong, blunder, bungle, commit sin, degenerate, deviate, divagate, do amiss, do wrong, drift, excurse, fall, fall into error, foozle, go adrift, go amiss, go astray, go awry, go wrong, goof, judge amiss, lapse, meander, misappreciate, misbelieve, miscalculate, miscompute, misconjecture, misconstrue, misdeem, misesteem, misestimate, misevaluate, misinterpret, misjudge, misreckon, miss, miss the mark, misthink, misvalue, offend, pererrate, ramble, rove, serve Mammon, sin, slip, slip up, snake, straggle, stray, stumble, transgress, trespass, trip, twist, twist and turn, wander, wind