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See more synonyms for assumpsit on Thesaurus.com
noun Law.
  1. a legal action for a breach of contract or promise not under seal.
  2. an actionable promise.
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Origin of assumpsit

1605–15; < Latin: he has taken upon himself, he has undertaken
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words


Examples from the Web for assumpsit

Historical Examples

  • A surety could be sued in assumpsit, although he had ceased to be liable in debt.

    The Common Law

    Oliver Wendell Holmes, Jr.

  • In this, as in the earlier case, the issue was taken on the assumpsit.

    The Common Law

    Oliver Wendell Holmes, Jr.

  • If you choose to make an assumpsit, I'm sure I shall not object to the security.

    The Absentee

    Maria Edgeworth

  • Assumpsit covered the whole province of debt, and much more.

  • It has been shown above that if a man was a common farrier he could be charged for negligence without an assumpsit.

    The Common Law

    Oliver Wendell Holmes, Jr.

British Dictionary definitions for assumpsit


  1. law (before 1875) an action to recover damages for breach of an express or implied contract or agreement that was not under seal
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Word Origin

C17: from Latin, literally: he has undertaken, from assūmere to assume
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012