The Collaborative International Dictionary of English v.0.48:
abscondment \ab*scond"ment\ n. 1. 1 the act of running away sectretly (as to avoid arrest). Syn: decampment [WordNet 1.5]WordNet (r) 3.0 (2006):
abscondment n 1: the act of running away secretly (as to avoid arrest) [syn: abscondment, decampment]