Webster's Revised Unabridged Dictionary · 1913

Diplomacy

Diplomacy , noun

[French diplomatie. This word, like supremacy, retains the accent of its original. See Diploma.]

1.
The art and practice of conducting negotiations between nations (particularly in securing treaties), including the methods and forms usually employed.
2.
Dexterity or skill in securing advantages; tact.
3.
The body of ministers or envoys resident at a court; the diplomatic body. [Rare] — Burke