Mainour
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
In criminal law. An article stolen, when found in the hands of the thief. A thief caught with the stolen goods in his possession is said to be taken "with the mainour," that is, with the property in manu, in his hands.
4 Bl. Comm. 307.
The void seems to have corresponded with the Saxon "handhabend" (q. v.) In modem law it has sometimes been written as an English word "manner," and the expression "taken in the manner" occurs in the books.
Crabb, Eng. Law, 154.