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See also: reversión and réversion



Borrowed into late Middle English from Old French reversion (modern réversion), from Latin reversio, from revertō. Surface analysis revert +‎ -sion.



reversion (countable and uncountable, plural reversions)

  1. The action of reverting something.
    Synonym: reversal
  2. The action of returning to a former condition or practice.
    Synonym: regression
  3. The fact of being turned the reverse way.
  4. The action of turning something the reverse way.
  5. (property law) The return of an estate to the donor or grantor after expiry of the grant.
    • 1822, Lord Byron, The Vision of Judgement, stanza 6:
      Each day too slew it’s[sic] thousands six or seven,
      Till at the crowning carnage—Waterloo—
      They threw their pens down in divine disgust,
      The page was so besmeared with blood and dust. […]
      (Here, Sathan’s sole good work deserves insertion—
      ’Tis, that he has both Generals in reversion).
  6. (property law) An estate which has been returned in this manner.
  7. (property law) The right of succeeding to an estate, or to another possession.
  8. The right of succeeding to an office after the death or retirement of the holder.
  9. (genetics) The return of a genetic characteristic after a period of suppression.
    Synonym: backmutation
  10. A sum payable on a person's death.
  11. (Islam) The act of conversion to Islam, due to the belief that all people are born Muslim.

Usage notes[edit]

Basic sense is reverting (as nominalization of revert), but also used as reversing (from reanalysis as reverse + -sion), for which the more precise term is reversal. Compare “mean reversion” with “reversal of fortune”. The similar regression has connotations of moving back in time.

Derived terms[edit]


Further reading[edit]


Old French[edit]


Latin reversiō.


reversion f (oblique plural reversions, nominative singular reversion, nominative plural reversions)

  1. return; act of going back
  2. return; act of giving back


  • English: reversion
  • French: réversion