ag ‧ gran ‧ dize ‧ ment BrE AmE ( also aggrandisement British English ) /əˈɡrændəzmənt, əˈɡrændɪzmənt/ noun [uncountable]
[ Date: 1600-1700 ; Language: French ; Origin: agrandissement , from agrandir , from grandir 'to increase' ]
when a person or country tries to increase their power or importance – used to show disapproval:
the misuse of authority for personal aggrandizement