Where does “сеструле” come from?

сеструле (Macedonian) comes from Macedonian сестра, from Old Church Slavonic сестра, from Proto-Slavic sestrà — sister.

Ancestry of “сеструле”, step by step

сеструле traces back through two separate lines of ancestry.

via Macedonian сестра

StepLanguageWordMeaning
1Macedonianсестраsister
2Old Church Slavonicсестраsister
3Proto-Slavicsestràsister

via Macedonian уле

StepLanguageWordMeaning
1Macedonianуле—
Every word from Proto-Slavic sestrà →Every word from Old Church Slavonic сестра →Every word from Macedonian сестра →