DictionaryerrMaking a mistake
verb

err

AIR/er/

To make a mistake in action or judgment.

The student has erred in placing the puzzle piece and now corrects it.

Black student notices incorrectly placed puzzle piece and corrects it.
Etymology

Latin errare meant to wander or go astray and already also meant to be in error. Making a mistake is thus pictured as straying from the right path.

In context

Storytime Haven103:37
Reason’s natural growth and motion is upward, not downward; forward, not backward; and they who flout reason terribly err, because they will not permit her to do that vital work which lies within her power.
The lavender dragon by Eden Phillpotts | Fantasy Full Audiobook

More examples

  • I erred in assuming everyone had received the email.
  • The report errs by treating estimates as established facts.
  • We err on the side of caution when planning winter trips.

Forms

err · errs · erred · erring

error noun — A mistake in action, judgment, or understanding.

erroneous adjective — Based on or containing a mistake.

Similar words

misjudge
Specifically means judging incorrectly, rather than making mistakes generally.
blunder
Suggests making a careless or obvious mistake, often with serious consequences.