diplomatically
UK: ˌdɪpləˈmætɪkli | US: ˌdɪpləˈmætɪkli
adv. in a tactful and skillful way, especially in handling sensitive matters
adv. in a manner related to diplomacy or international relations
The word "diplomatically" stems from "diplomatic," which derives from the French "diplomatique," originally referring to official documents (from Greek "diploma" <folded paper, document>). The suffix "-ally" transforms the adjective into an adverb, indicating manner. The evolution reflects the shift from literal document-handling to figurative skill in negotiation and tact.
She handled the conflict diplomatically, avoiding offense.
The ambassador spoke diplomatically to ease tensions.
He declined the invitation diplomatically to maintain goodwill.
The statement was worded diplomatically to avoid controversy.
Negotiations proceeded diplomatically, with both sides compromising.