Artificial intelligent assistant

dittogram

ˈdittogram
  [f. Gr. διττό-ς twofold, double + γράµµα: see -gram.]
  A letter or series of letters unintentionally repeated by a scribe in copying; = dittograph.

1881 Athenæum 16 July 77/2 The mora of ‘moram’ may be a dittogram from -m orationis.

Oxford English Dictionary

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