ABSTRACT
The Na-Dene languages are spoken in a large discontinuous area of western North America. They are known for highly complex, partly non-concatenative, predominately prefixal verb morphology that shows linearly alternating inflectional and derivational elements and has been the focus of extended theoretical investigation. Syntactically, they universally exhibit SOV constituent order but typically allow various kinds of scrambling. Other notable features are a two-copula system and doubly marked possession. All Na-Dene languages are endangered, and many communities are engaged in revitalization efforts.
