plenipotentiary

plenipotentiary

[plen-uh-puh-ten-shee-er-ee, -shuh-ree]
noun, plural plenipotentiaries.
1.
a person, especially a diplomatic agent, invested with full power or authority to transact business on behalf of another.
adjective
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

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World English Dictionary
plenipotentiary (ˌplɛnɪpəˈtɛnʃərɪ)
 
adj
1.  (esp of a diplomatic envoy) invested with or possessing full power or authority
2.  conferring full power or authority
3.  (of power or authority) full; absolute
 
n , -aries
4.  See also envoy a person invested with full authority to transact business, esp a diplomat authorized to represent a country
 
[C17: from Medieval Latin plēnipotentiārius, from Latin plēnus full + potentiapower]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

plenipotentiary
c.1645, from M.L. plenipotentiarius "having full power," from L. plenus "full" (see plenary) + potentem "powerful" (see potent).
Online Etymology Dictionary, © 2010 Douglas Harper
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