assumpsit

Borrowed from Latin assūmpsit (“he undertook, preterite of assūmere”). Doublet of assume.

assumpsit (plural assumpsits)

1. (law) A promise or undertaking, either express or implied, founded on a consideration.
2. (law) An action to recover damages for breach or nonperformance of such a promise.

• non assumpsit

• “assumpsit”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

assūmpsit

1. third-person singular perfect active indicative of assūmō