" plenipotentiary "

[Adjective]  | "plen*i*po*ten*tia*ry" | \ ˌple-nə-pə-ˈten(t)-sh(ə-)rē \

1: invested with full power

2: of or relating to a plenipotentiary

Origin: 1646 ;

 Borrowed from Medieval Latin plēnipotentiārius, from plēnipotentia "full power or authority" (noun derivative of Late Latin plēnipotent-, plēnipotens "invested with full power, {see: |plenipotent|plenipotent}") + Latin -ārius {see: |-ary:2|-ary:2};

[Noun]  | "plenipotentiary" 

1: a person and especially a diplomatic agent invested with full power to transact business

Origin: 1648 ;

 Borrowed from Medieval Latin plēnipotentiārius, noun derivative of plēnipotentiārius {see: |plenipotentiary:1|plenipotentiary:1};

[Noun]  | "minister plenipotentiary" 

1: a diplomatic agent ranking below an ambassador but possessing full power and authority

Origin: 1783 ;

[Noun]  | "plenipotentiary"