Change.  It’s what’s for dinner.

vicissitude (vi·cis·si·tude): / vi SIS i tood /
noun

(1) a change or variation in the course of something, as in human affairs or life
(2) alternating or regular change; succession; variability
(3) natural change or mutation, as in human affairs or nature
(4) change or changeability; mutability; mutation
(5) plural or vicissitudes: successive changes in conditions or states, as in life or fortune; ups and downs

[From or via Middle French from Latin vicissitudo, from vicissim meaning “in turn or by turns,” from vicis meaning “change, alternation, place.”]

Usage: [via] The list goes on, but I already tire of this exploration of my life’s vicissitudes.