Artificial intelligent assistant

mighthead

† ˈmighthead Obs.
  [f. might n. + -hed, -head; but cf. mightsome v.]
  Mightiness.

a 1300 E.E. Psalter cxliv. 7 Minde of mighthed of þi softnesse [Vulg. Memoriam abundantiæ suavitatis tuæ].

Oxford English Dictionary

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