Which preposition to use with mecum

of Occurrences 9%

This prophecy of Noah is the vade mecum of slaveholders, and they never venture abroad without it.

for Occurrences 2%

To these are superadded the usual contents of a pocket book, so as to render the present volume a desirable vade-mecum for the operative, the manufacturer, and engineer.

in Occurrences 2%

Dum autem semel veniret in Cambeleth, et fama vndique diuulgaretur de suo aduentu, vnus noster Episcopus, et aliqui nostri minores fratres et ego iuimus obuiàm sibi benè per duas dietas: Et dum appropinquaremus ad eum, posuimus crucem super lignum, et ego habebam mecum in manu thuribulum, et incepimus cantare alta voce dicentes:

Which preposition to use with  mecum