dethronement

Etymology

dethrone + -ment

noun

1. The act of being dethroned; the state of having been dethroned or removed from a superior place in a hierarchy.
   I felt the first inkling of a thing that presently grew quite clear in my mind, that oppressed me for many days, a sense of dethronement, a persuasion that I was no longer a master, but an animal among the animals, under the Martian heel. 1898, H.G. Wells, The War of the Worlds, London: William Heinemann, page 240