Where does “Stryjak” come from?

Stryjak (Polish) comes from Polish stryj, from Ukrainian Стрий, from Proto-Slavic strъjь — uncle.

Ancestry of “Stryjak”, step by step

StepLanguageWordMeaning
1Polishstryjpaternal uncle
2UkrainianСтрийpaternal uncle
3Proto-Slavicstrъjьuncle
Every word from Proto-Slavic strъjь →Every word from Ukrainian Стрий →Every word from Polish stryj →