The DNA of Language Families
Early linguists used terms like "family" to describe language kinship.
They took this terminology from the biological connections found between related people. For example, "daughter languages" of a proto-language are considered "genetically related."
More on Language Families
The creation and grouping of language families has a remarkable history. Researchers continue using the system (and debating its structure) still today.
Learn more at our 'language families' articles and posts.