> nor contact with the rest of the world has a name for something

Almost everywhere that white Europeans went and named things, they did so with native guides that had names for things.

Many of the Australian plants and animals named with European taxonomies still have common native names and aboriginals alive, kicking, and somewhat traditional that still use older native namings.

eg: (IIRC) https://www.youtube.com/watch?v=J7h9V4aKlJw