Where does “stryjna” come from?

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

Ancestry of “stryjna”, step by step

StepLanguageWordMeaning
1Polishstryjpaternal uncle
2UkrainianСтрийpaternal uncle
3Proto-Slavicstrъjьuncle
Every word from Proto-Slavic strъjьEvery word from Ukrainian СтрийEvery word from Polish stryj