Where does “guľový blesk” come from?

guľový blesk (Slovak) comes from Czech blesk, from Proto-Slavic blěskъ, from Proto-Balto-Slavic blaiskas, from Proto-Indo-European bʰloyǵskos, from Proto-Indo-European bʰleyǵ- — to shine.

guľový blesk (Slovak): ball lightning

Definitions

  1. ball lightning

Ancestry of “guľový blesk”, step by step

guľový blesk traces back through two separate lines of ancestry.

via Czech blesk

StepLanguageWordMeaning
1Czechblesk"inanimate"; lightning; photoflash
2Proto-Slavicblěskъglitter, brightness, flash
3Proto-Balto-Slavicblaiskas
4Proto-Indo-Europeanbʰloyǵskos
5Proto-Indo-Europeanbʰleyǵ-to shine

via Slovak guľový

StepLanguageWordMeaning
1Slovakguľovýball; spherical
2Slovak-ovýattributive suffix; Added at the end of the name...
3Proto-Slavic-ovъof, belonging to
Every word from Proto-Indo-European bʰleyǵ-Every word from Proto-Indo-European bʰloyǵskosEvery word from Proto-Balto-Slavic blaiskas