#plenipotentiary

Illuminated portrait of diplomat D. Luís da Cunha (1662–1749) — Unknown artist, 1715 (National Library of Portugal)

Portrait engraving of priest and diplomat Luís Pereira de Castro (1582–1649) — in Les portraits au naturel avec les armoires nomes et qualites de messieurs les Plénipotentiaires, 1648 (British Museum)

I shall add more at a later date.

n. A diplomatic agent, such as an ambassador, fully authorized to represent his or her government.

The adjective "plenipotentiary" is typically used after the noun it modifies in the ranking of diplomatic hierarchy. "Plenipotentiary" gets its power from its Latin roots: "plenus," meaning "full," and "potens," "powerful." When government leaders dispatch their ambassador plenipotentiary, minister plenipotentiary, or envoy plenipotentiary, they are not just sending an agent to deal with foreign affairs but one having full power to act on the behalf of his or her country and government. The word "extraordinary" is also found in titles of government representatives--sometimes in combination with "plenipotentiary" (as in "Ambassador Extraordinary and Plenipotentiary")--to denote an agent assigned to a particular (or extraordinary) diplomatic mission. Both the adjective and the noun "plenipotentiary" (meaning "a person invested with full power to transact business") appeared in the mid-17th century.

dbang cha tshang ma yod pa'i sku tshab - representative plenipotentiary / w full/ total power/ authority [IW]

Tina Modotti - Plenipotentiary

2 Invested with full power or authority, as a diplomatic agent. 3. Conferring or bestowing full power, as a commission.  4. Absolute or full, as power. Origin: 1635–45; < Medieval Latin plēnipotentiārius. See plenipotent, -i-, -ary