Hierarchy classification:

1. top of the aat hierarchies
2. Associated Concepts Facet
3. Associated Concepts (hierarchy name)
4. language-related concepts
5. [languages and writing systems]
6. [languages and writing systems by general type]
7. languages (established systems of communication)

Anotations

Scope note:

Languages characterized by being distinct from any modern languages, even languages that are descended from it. For example, Old English and Middle English are distinct from modern English. A criterion is that the language has a literature that is treated distinctly by the scholarly community.