Father: [...] I'm sad because, my darling, our poverty has now reached such extremes that I can no longer afford to keep us. I must look to my own dear tiny darling to sustain me in my frail dotage.
Kate: But father, surely...
Father: Yes Kate, I want you to become a prostitute.
BBC. Blackadder, season 2: Bells
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The least miserable among them appear to be those who turn to dotage, and entirely lose their memories; these meet with more pity and assistance, because they want many bad qualities which abound in others.
Jonathan Swift. Gulliver's Travels Into Several Remote Regions of the World (1726)
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the old man in his dotage was expressed in the highest degree by the behavior of Chichagov,
Leo Tolstoy. War and Peace: With bonus material from Give War and Peace A Chance by Andrew D. Kaufman