I am kind of writing a book, which is set in medieval times and I have a kind of conflict between a drunk and a tavern-keeper that takes offence to the drunk calling him a Finn because his accent sounds like a Finnish one. I really need an ethnicity/mother tongue for the tavern-keeper to be of for this misunderstanding to work.
This might not be the right place for this question but thanks in advance if I do get answers.
Edit:I guess it boils down to estonian then. Those dialects and languages people propose are in finland or in areas that are in my book norse. And they wouldn't work since the only finns that are left in my books universe live on the east side of ladoga and the only estonians that are left lives in Ingermanland(Ingria) and maybe ryazan.
Thanks for the answers everyone.