Parabellum

n.

proprietary name for a type of automatic firearm, 1904 (Mauser & Deutsche Waffen und Munitionsfabriken), from Latin phrase si vis pacem, para bellum, from para, imperative of parare "to prepare" (see para- (2)) + bellum "war" (see bellicose).

Online Etymology Dictionary, © 2010 Douglas Harper

Examples from the Web for parabellum

Historical Examples of parabellum