Where does “Первомайськ” come from?

Первомайськ (Ukrainian) comes from Russian пе́рвый — first.

Ancestry of “Первомайськ”, step by step

Первомайськ traces back through two separate lines of ancestry.

via Russian пе́рвый

StepLanguageWordMeaning
1Russianпе́рвыйfirst

via Ukrainian май

StepLanguageWordMeaning
1Ukrainianмай
Every word from Russian пе́рвый
Первомайськ — Etymology, Origin & Word History | Etymology Explorer