a. [ L. irruptus, p. p. of irrumpere to break in; pref. ir- in + rumpere to break or burst. See Rupture. ] Broken with violence. [ 1913 Webster ]
n. [ L. irruptio: cf. F. irruption. See Irrupted. ] [ 1913 Webster ]
Lest evil tidings, with too rude irruption
Hitting thy aged ear, should pierce too deep. Milton. [ 1913 Webster ]
a. Rushing in or upon. [ 1913 Webster ]