Vi·cis·si·tude [vɪˈsɪsɪˌtjuːd] — Noun
- change or variation occurring in the course of something.
- interchange or alternation, as of states or things.
- successive, alternating, or changing phases or conditions, as of life or fortune.
- regular change or succession of one state or thing to another.
- change, mutation, mutability.
From Latin vicissitudo, from vicis “change, alternation”.