takatalvi

Noun

 * 1) a prolonged and sometimes extreme cold spell in spring, experienced as a "return" of winter (understood as such in the past); a blackberry winter or blackthorn winter
 * 2) wintry weather in spring; a cold snap with or without snowfall

Etymology
From. Akin to 🇨🇬.

Noun

 * 1) blackthorn winter