potency

noun potencies

1. countable, uncountable Power, authority. I would to heauen I had your potencie, And you were Isabell: should it then be thus? No: I would tell what 'twere to be a Iudge, and what a prisoner.
2. countable, uncountable The ability or capacity to perform something
3. countable, uncountable, usually, of men Sexual virility: the ability to become erect or achieve orgasm. Pliny the Elder states that, to increase sexual potency, the right testis of an ass should be worn in a bracelet.

   Opposite: impotence

4. countable, uncountable, of alcoholic drinks, of drugs Concentration; strength
5. countable, uncountable Potentiality, ability, capacity.
6. countable, dated, uncountable Cardinality.