This is a map that shows how to write the word “country” on (almost) every European language. The similar ones are colored, and the unique ones are light-gray. I am also currently working on a similar map, but with Asia and Oceania.
P.S.: If anyone knows how to write “country” on the languages I missed, it will be highly appreciated 
https://maphub.net/Shwabb1/how-to-write-word-country-on-every-european-language