D defs.my
Entry 1 sense Webster, 1913

Potency

/pōt'-ən-sē/ · Po·ten·cy · IPA /ˈpəʊtənsi/
01 n. The quality or state of being potent; physical or moral power; inherent strength; energy; ability to effect a purpose; capability; efficacy…
  1. 1.
    The quality or state of being potent; physical or moral power; inherent strength; energy; ability to effect a purpose; capability; efficacy; influence.
    “A place of potency and away o' the state.” Shak.