The crossword solution for the term LETT is LATVIAN. Latvia is a country located in Northern Europe, bordered by Estonia, Lithuania, Belarus, and Russia. It has a population of over two million people and its capital city is Riga. The official language of Latvia is LATVIAN, which is part of the Baltic language family. LATVIAN is spoken by around 1.5 million people in Latvia and is also spoken by LATVIAN diaspora communities around the world.