as·​sump·​sit | \ ə-ˈsəm(p)-sət \

Definition of assumpsit

1 : an express or implied promise or contract not under seal on which an action may be brought
2a : a former common-law action brought to recover damages alleged from the breach of an assumpsit
b : an action to recover damages for breach of a contract

First Known Use of assumpsit

1590, in the meaning defined at sense 1

History and Etymology for assumpsit

New Latin, he undertook, from Latin assumere to undertake

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The first known use of assumpsit was in 1590

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as·​sump·​sit | \ ə-ˈsəmp-sit \

Legal Definition of assumpsit

: an express or implied promise or contract or quasi contract the breach of which may be grounds for a suit also : a common-law action that may be brought for such a breach — compare covenant, debt

Note: The action of assumpsit developed in early English law and is still available in the U.S. in some jurisdictions.

History and Etymology for assumpsit

Medieval Latin, he/she undertook

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