n (obsolete) The act of disowning or disinheriting a child. (defdate|Attested from the mid 16th century until the mid 17th century.)(reference-book | last =| first = | authorlink = | coauthors = | editor =Brown, Lesley | others = | title = The Shorter Oxford English Dictionary | origdate = | origyear = 1933| origmonth = | url = | format = | accessdate = | accessyear = | accessmonth = | edition = 5th | date = | year =2003| month = | publisher =Oxford University Press | location =Oxford, UK | language = | id = | doi = | isbn =978-0-19-860575-7 | lccn = | ol = | pages =3| chapter = | chapterurl = | quote =)
n The act of abdicating; the renunciation of a high office, dignity, or trust, by its holder. (defdate|First attested in the early 17th century.)
n The voluntary renunciation of sovereign power; as, 'abdication' of the throne, government, power, authority. (defdate|First attested in the late 17th century.)
n (obsolete|legal) The renunciation of interest in a property or a legal claim; abandonment. (defdate|Attested only in the mid 18th century.)
n (obsolete) The action of being deposed from the seat of power. (defdate|Attested only in the mid 17th century.)