Indebitatus
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
Lat Indebted. Nunquam indebitatus, never Indebted. The title of the plea substituted in England for nil debet.
— Indebitatus assumpsit. Lat. Being indebted, he promised or undertook. This is the name of that form of the action of assumpsit in which the declaration alleges a debt or obligation to be due from the defendant, and then avers that, in consideration thereof, he promised to pay or discharge the same.