The period of life in which a person is old and often weak, often associated with a decline in mental faculties.

बुढ़ापे का समय

English Usage: In his dotage, he often forgot the names of his grandchildren.

Hindi Usage: अपने बुढ़ापे के समय में, वह अक्सर अपने पोते-पोतियों के नाम भूल जाता था।