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absit omen

interjection ab·sit omen \ ˌabsə̇tˈōmən \

Definition of absit omen

—used as a mild invocation
  • if he should fail, absit omen, all will be lost
 — compare God forbid at 2god

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Origin and Etymology of absit omen

Latin, may (evil) omen be absent, i.e., may what is said not come true

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