Definition of Assumpsit:
Expressed or implied but unwritten promise or undertaking to perform an act or to pay a sum. Court action in which a seller sues a buyer for good supplied against an oral order but not paid-for is an assumpsit action. Latin for, he undertook.
A plea in an action of assumpsit by which the defendant denies having made any promise or undertaking.
Meaning of Assumpsit & Assumpsit Definition