erred; erring; errs

intransitive verb

1
a
: to make a mistake
erred in his calculations
erred on the side of caution
b
: to violate an accepted standard of conduct
2
archaic : stray

Did you know?

Is it human to err?

Many people are familiar with the word err from encountering it in the epigram “to err is human; to forgive, divine.” This phrase is found in Alexander Pope’s An Essay on Criticism, from 1711. Earlier expressions of the same sentiment exist, as in Thomas Jones’ 1678 book, Of the Heart, and its Right Soveraign, which contains the line “to err, is human, to recover, is Angelical; to persevere is Diabolical.”

Err is also often found in the phrase err on the side of caution, to suggest that being overly cautious is better than not being cautious enough.

Err stems from the Latin word errare, meaning “to stray, wander,” and it retained that meaning when it first entered English. We find the same Latin ancestor at the root of the words error, erratic, and erroneous.

Examples of err in a Sentence

I may have erred in my calculations. The court erred in refusing to allow bail.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Harvard has erred in its handling of campus antisemitism, but the school must be doing something right. Reader Commentary, Baltimore Sun, 27 May 2025 But on Tuesday, MSG’s attorney Damien Marshall wrote a letter to Sullivan saying that Oakley erred by relying on Barnes. Michael McCann, Sportico.com, 22 May 2025 An Ohio appeals court declared Tuesday that a portion of a 2023 law banning gender-affirming medical care for minors is unconstitutional, ruling that a lower court erred in deciding the law does not infringe on the rights of parents or violate parts of the state’s constitution. Brooke Migdon, The Hill, 18 Mar. 2025 The court’s opinion did not address the merits of the argument, but only found that the lower district court erred by giving an injunction when there was no evidence of irreparable harm to the union. Jack Birle, The Washington Examiner, 17 May 2025 See All Example Sentences for err

Word History

Etymology

Middle English, from Anglo-French errer, from Latin errare to wander, err; akin to Old English ierre wandering, perverse, Goth airzeis deceived

First Known Use

14th century, in the meaning defined at sense 2

Time Traveler
The first known use of err was in the 14th century

Browse Nearby Words

Cite this Entry

“Err.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/err. Accessed 10 Jun. 2025.

Kids Definition

err

verb
1
: to make a mistake
erred in my calculations
2
: to do wrong : sin

Legal Definition

err

intransitive verb
: to make an error
the court erred in denying the motion

More from Merriam-Webster on err

Last Updated: - Updated example sentences
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