Where does “siedemdziesięciolecie” come from?

siedemdziesięciolecie (Polish) comes from Polish lato, from Proto-Slavic lěto, from Proto-Indo-European leh₁tóm.

siedemdziesięciolecie (Polish): seventy-year-long period

Definitions

  1. seventy-year-long period

Ancestry of “siedemdziesięciolecie”, step by step

siedemdziesięciolecie traces back through two separate lines of ancestry.

via Polish lato

StepLanguageWordMeaning
1Polishlatosummer
2Proto-Slaviclětosummer; year
3Proto-Indo-Europeanleh₁tóm—

via Polish siedemdziesiąt

StepLanguageWordMeaning
1Polishsiedemdziesiątseventy
2Old Polishsiedmdziesiątseventy
3Proto-Slavic*sedmь desęti—
Every word from Proto-Indo-European leh₁tóm →Every word from Proto-Slavic lěto →Every word from Polish lato →