Where does “Janek” come from?

Janek (Czech) comes from Czech Jan, from Old Czech [[Jan]], [[Ján]], from Latin Joannes.

Ancestry of “Janek”, step by step

StepLanguageWordMeaning
1CzechJanJohn
2Old Czech[[Jan]], [[Ján]]—
3LatinJoannes—

Words derived from “Janek”

Every word from Latin Joannes →Every word from Old Czech [[Jan]], [[Ján]] →Every word from Czech Jan →