Jarilo
Jarylo (Cyrillic: Ярило or Ярила; Polish:Jaryło; Croatian:Jura or Juraj; Serbian:Jarilo; Slavic: Jarovit), alternatively Yarylo, Iarilo, or Gerovit, is a Slavic god of vegetation, fertility and springtime.
The Slavic root jar or yar means spring or summer or strong.