prō-ruptĭo

ōnis, f.

prorumpo

I. a breaking or rushing forth, an eruption (post-class.): hostium, Aur. Vict. Caes. 33: undarum, Mart. Cap. 6, § 624.—Absol., Mart. Cap. 8, § 804.
Lewis & Short
A Latin Dictionary, 1879
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