Lewis Short
prō-ruptĭo (noun F) : prorumpo
* A breaking or rushing forth, an eruption (post-class.): hostium,a sally, sortie,Aur. Vict. Caes. 33: undarum,Mart. Cap. 6, § 624.—Absol., Mart. Cap. 8, § 804.
Charlton T. Lewis, Charles Short, A Latin Dictionary