English citations of tricenarian

Adjective? or possibly just an attributive use of the noun
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    • 2017, Austin Dragon, A.I. Confidential, →ISBN:
      "The only people who might act are the police who'll want to know why a nonagenarian and tricenarian detectives are acquiring weapons that terrorists might want,” I said.
    • 2019, Claire Chambers, Making Sense of Contemporary British Muslim Novels, →ISBN, page 141:
      Yet at another level there is an infantilization of the tricenarian woman.