Säkkijärvi

Etymology
🇰🇲, possibly from likening the shape of the lake (after which the municipality is named) to a sack, although a story exists about the lake being used to transport sacks of flour during the winter when the lake was frozen.

Proper noun

 * 1) A former municipality of Finland mostly within territory ceded due to World War II, now in Russia with remaining portions in Finland merged to other municipalities.