baltic

adjective
  1. 1

    Of or pertaining to the Baltic region or the Baltic Sea.

  2. 2

    Of or pertaining to any of the Baltic languages.

  3. 3

    Of or pertaining to the Balts (the Baltic peoples).

  4. 4

    Extremely cold.

Source: https://en.wiktionary.org/wiki/Baltic, https://en.wiktionary.org/wiki/baltic