Artificial intelligent assistant

congaudence

conˈgaudence Obs. rare.
  [f. L. congaudēre to rejoice together: see -ence.]
  Rejoicing together, mutual rejoicing.

c 1460 J. Russell Bk. Nurt. 1190 in Babees Bk., That his souereyn þroughe his seruice may make grete congaudence.

Oxford English Dictionary

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