👉 In the context of linguistics, a "coadaptation" is an adaptation that occurs when two or more languages are spoken by people who have had similar experiences (e.g., speaking the same language), but not necessarily at the same time. For example, in German and French, coadaptations occurred between 13th- to 16th-century speakers of these languages. These speakers came from different places and spoke languages that were very much like each other's. However,