– noun:
[MEY-ner]
Definition:
1. a stolen article found on the person of or near the thief: to be taken with the mainour.
Examples:
1. Caught the thief, with the mainour, hey?
– Maria Edgeworth, the Parent’s Assistant
2. …if I be taken with the mainour, if the theft be found about me, I shall either be killed, or carted with a paper crown set upon my head, having my fault written in great text-letters.
– Fernando de Rojas, The Celestina
[From Dictionary.com]