What is another word for "secession"?

Roget's Thesaurus (1911) lists these synonyms for "secession": abandon, abandonment, abjure, abrogation, all, argument, avast, back, bid, break, cave, cease, cessation, cession, day, defection, depart, desert, desertion, desist, desuetude, discard, discontinuance, disuse, done, drop, farewell, forego, forsake, from, game, gern, give, hand, hast, have, hold, idea, leave, long.