The term 'NEIGHBOR OF LAT.' can be solved by the crossword solutions LITH (4 letters) and ESTH (4 letters). LITH stands for Lithuania, a country located in Northern Europe, bordered by Latvia to the north, Belarus to the east and south, Poland to the south, and Kaliningrad Oblast of Russia to the southwest. ESTH stands for Estonia, a country located in Northern Europe, bordered by Latvia to the south and Russia to the east. Both Lithuania and Estonia are neighbors of Latvia.