"Diplomatism" is a word in ENGLISH

Having plurality of origin or authority; as, in diplomacy, a note signed by the representatives of several governments is called …

The body of ministers or envoys resident at a court; the diplomatic body.

Dexterity or skill in securing advantages; tact.

The art and practice of conducting negotiations between nations (particularly in securing treaties), including the methods and forms usually employed.

The science which treats of the relations and Interests of nations with nations

Pertaining to diplomacy; relating to the foreign ministers at a court, who are called the diplomatic body.

According to the rules of diplomacy; in the manner of a diplomatist; artfully.

A person employed in, or skilled in, diplomacy; a diplomat.

diplumasíya, diplumasya n {1} diplomacy. {2} knack of saying s.t. tactful to smooth personal relations.

Intervention; lnterposi-tlon; the act of a third person who inter-feres between two contending parties with a view to reconcile them …

Fr. In French law. The preliminary negotiations or bargainings which lead to a contract between the parties. As in Euglish …

Hence: A person of enigmatical character and purposes, especially in politics and diplomacy.