agency agentship assignment authority authorization brevet care change charge commission commissioning commitment commutation consignment cure delegated authority delegation deputation deputyship devolution devolvement displacement embassy empowerment entrusting entrustment errand exchange executorship exequatur factorship full power jurisdiction legation license lieutenancy mandate mission office plenipotentiary power power to act procuration proxy purview quid pro quo regency regentship replacement representation responsibility subrogation substitution supersedence superseding supersedure supersession supplantation supplanting supplantment switch task tit for tat trust trusteeship vicarious authority vicariousness warrant