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 having gone extinct in ancient times, thta is, more than a millennium ago. Ancient languages are identified by having a distinct literature and as treated distinctly by the scholarly community.