Definition of plenipotency in English:

plenipotency

Pronunciation /ˌplɛnɪˈpəʊtnsi/

noun

  • The quality of being plenipotent; (a conferment of) full power or authority.

Origin

Early 17th century; earliest use found in Briefe Information Affaires Palatinate. From post-classical Latin plenipotentia full power or authority from plenipotent-, plenipotens + -ia see -ency, and compare potency. Compare Spanish plenipotencia, Portuguese plenipotência, Italian plenipotenza.