Answer and Explanation:
Dead language is the term used to describe a language that no longer has native speakers, even though it is possible to study it and have knowledge of its grammar and vocabulary. However, as there are no native speakers, the study of pronunciation is weakened.
Language change, on the other hand, is the term that refers to changes made to a language over time. This is a common characteristic of a living language, which changes and evolves as its society advances.
Editing a dead language is usually done by comparing other related languages and by sound patterns.