Artificial intelligent assistant

harmoniacal

harmoˈniacal, a. Obs.
  [f. as prec. + -al1.]
  Full of harmony, harmonious; harmonical.

1536 Primer Hen. VIII, Jesus, the honor Angelicall, To them so sweet armoniacall. 1620–55 I. Jones Stone-Heng (1725) 23 There's no one Structure..wherein more clearly shines those harmoniacal Proportions. a 1660 Hammond 19 Serm. v. Wks. 1684 IV. 592 To tune him to that sweet harmoniacal Gospel temper. 1693 J. Beaumont On Burnet's Th. Earth i. 71 Another mind, to whom other harmoniacal Laws may be more pleasing.

Oxford English Dictionary

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