Slip-up

//ˈslɪpʌp// noun

Definitions

Noun
  1. 1
    A (small) error or mistake; a (minor) misstep. idiomatic

    "I think she will forgive an accidental slip-up, so don’t worry too much about misspeaking."

  2. 2
    a minor inadvertent mistake usually observed in speech or writing or in small accidents or memory lapses etc. wordnet

Etymology

Deverbal from slip up.

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