Artificial intelligent assistant

lipogram

lipogram
  (ˈlɪpəgræm)
  [Back-formation f. Gr. λιπογράµµατος adj., wanting a letter, f. λιπ-, weak stem of λείπειν to leave, be wanting + γραµµατ-, γράµµα letter. Cf. F. lipogramme.]
  A composition from which the writer rejects all words that contain a certain letter or letters.

1711 Addison Spect. No. 62 ¶3 Anagrams, Chronograms, Lipograms and Acrosticks. 1880 W. T. Dobson Lit. Frivol. 58 Lipogram is the name applied to a species of verse in which a certain letter, either vowel or consonant, is altogether omitted.

Oxford English Dictionary

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