noun Law.

a legal action for a breach of contract or promise not under seal.
an actionable promise.

Origin of assumpsit

1605–15; < Latin: he has taken upon himself, he has undertaken Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for assumpsit

Historical Examples of assumpsit

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

    The Common Law

    Oliver Wendell Holmes, Jr.

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

    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



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

Word Origin for assumpsit

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