The Collaborative International Dictionary of English v.0.48:
Reestablishment \Re`es*tab"lish*ment\ (-mnt), n. The act reestablishing; the state of being reestablished. --Addison. [1913 Webster]WordNet (r) 3.0 (2006):
re-establishment n 1: restoration to a previous state; "regular exercise resulted in the re-establishment of his endurance"