ger·on·toc·ra·cy
noun/ˌdʒerənˈtɒkrəsi/
/ˌdʒerənˈtɑːkrəsi/
(plural gerontocracies)
[countable, uncountable]- a state, society or group governed by old people; government by old people
老人统治的国家（或社会、组织）；老人统治 Word Originmid 19th cent.: from Greek gerōn, geront- ‘old man’ + -cracy.