Artificial intelligent assistant

perlibrate

perˈlibrate, v. Obs. rare—0.
  [f. ppl. stem of L. perlībrāre, f. per- 4 + lībrāre, f. lībra balance.]
  To weigh exactly. So perliˈbration.

1623 Cockeram, Perlibrate, to weigh. Perlibration, a weighing.

Oxford English Dictionary

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