Columbia subject headings:
Harvard subject headings:
Diplomacy--Language
Diplomacy--Language--14th century.
Diplomacy--Language--15th century.
Diplomacy--Terminology
French language--Terms and phrases.
French language--To 1300--Lexicology.
French language--To 1300.
Terms and phrases, Medieval.
Princeton subject headings:
Diplomacy--Language--History--To 1500.
French language--Semantics, Historical.
French language--To 1300.