Artificial intelligent assistant

chancely

† ˈchancely, adv. Obs.
  [f. chance n. B + -ly2.]
  By chance, accidentally, haply.

c 1340 Gaw. & Gr. Knt. 778 And he ful chauncely hatz chosen to þe chef gate. 1389 E.E. Gilds (1870) 4 Þ{supt} eny debat chaunselich falle among eny of hem.

Oxford English Dictionary

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