Glossary
language isolate
A language isolate is a language that is unrelated to any other known language.
Glossary
retronym
A retronym is a new term for an old concept that is created because the word for the old concept has shifted in meaning and no longer uniquely refers to the original idea.
Glossary
language family
A language family is a group of languages that descend from a common ancestor.
Glossary
linguistics
Linguistics is the scientific study of language.