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n. (used with a sing. verb)
The branch of paleography that deals with the study of old official documents and determines their age and authenticity.
n (functioning as singular)
1. (Library Science & Bibliography) the critical study of historical documents
2. (Government, Politics & Diplomacy) a less common word for diplomacy
the critical study of original historical documents, as registers, treaties, and charters, especially from medieval periods.See also: Manuscripts