ENTERPRISE n. 5 definitions
y, and the like; a bold, arduous, or hazardous attempt; an undertaking; as, a manly enterprise; a warlike enterprise. Shak. Their hands can not perform their enterprise. Job v. 12.
MAINPRISE n. 3 definitions
A writ directed to the sheriff, commanding him to take sureties, called mainpernors, for the prisoner's appearance, and to let him go at large. This writ is now obsolete. Wharton.