senility

Etymology

senile + -ity

noun

  1. (chiefly uncountable) Senescence; the bodily and mental deterioration associated with old age.
  2. (chiefly uncountable) The losing of memory and reason due to senescence.
    He was entering his years of senility and not liking it a bit.
  3. (countable, archaic) An elderly, senile person.
    There was no need for George Playford to talk as if they were doddering senilities. 1934 May, Hearst's International combined with Cosmopolitan, page 117

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