vicissitude
Cross references: 1. change 2. difficulty vi.cis.si.tude \v*-'sis-*-.t(y)u:d, vi--\ n [MF, fr. L vicissitudo, fr. vicissim in turn, fr. vicis chang]e, alternation - more at WEEK 1a: the quality or state of being changeable : MUTABILITY 1b: natural change or mutation visible in nature or in human affiars 2a: an accident of fortune (as of prosperity or happiness) 2b: alternating change : SUCCESSION