Artificial intelligent assistant

counterchanging

ˌcounterˈchanging, vbl. n.
  [f. as prec. + -ing1.]
  The action of the verb counterchange; spec. in Her. (see prec.).

1586 J. Ferne Blaz. Gentrie ii. 105 An impaling of the armes of this lady with the Kings, with a counterchanging of them, by the fesse or vmbilique point of the sheeld. 1610 J. Guillim Heraldry v. ii. (1660) 365 Counterchanging or Transmutation is an intermixture of severall Metalls or colours both in field and charge occasioned by the opposition of some one or more lines of partition. 1881 Athenæum 16 Apr. 531/3 We know no other [instance] where double counterchanging has been effected.

Oxford English Dictionary

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