The Collaborative International Dictionary of English v.0.48:
Abruption \Ab*rup"tion\, n. [L. abruptio, fr. abrumpere: cf. F. abruption.] A sudden breaking off; a violent separation of bodies. --Woodward. [1913 Webster]WordNet (r) 3.0 (2006):
abruption n 1: an instance of sudden interruption [syn: breaking off, abruption]