Definition of "abdication"

(obsolete) The act of disowning or disinheriting a child.

The act of abdicating; the renunciation of a high office, dignity, or trust, by its holder.  examples

The voluntary renunciation of sovereign power.  examples

(obsolete, law) The renunciation of interest in a property or a legal claim; abandonment.

(obsolete) The action of being deposed from the seat of power.