Meanings
historical · no pluralThe tree model theory, a theory of the evolution of languages analogous to the concept of a family tree, with the assumption that each language has evolved from a single parent language, with languages that share a common ancestor belonging to the same language family.
tree model
Die Stammbaumtheorie ist nur ein Modell unter mehreren für Sprachwandel und Verwandtschaftsverhältnisse zwischen Sprachen.