Off the top of my head, some examples of midly annoying symptoms of the usage of terms from Celtic languages in popular culture:
- Searching for Druids, Epona, Hiraeth or any other term that's been yoinked out of context on any search engine invariably brings up something completely different to the original meaning.
(E.g. Epona just brings up Zelda, Druids just brings up D&D and Hiraeth just brings up #inspirational quotes)
- You have to explain to people that terms like 'Druid' aren't a made up fantasy name for a magic user class and actually come from living or dead Celtic languages.
- Video games and programmes will regularly sprinkle in mispelled/mispronounced Welsh and Irish with no context to make the worldbuilding seem more 'mystical'.
These are (generally) just mildly annoying to deal with but when two or more are combined, things can get much worse.
Feel free to add on more of your own examples













