Where does “rywalka” come from?

rywalka (Polish) comes from Polish rywal, from French rival, from Latin rīvālis, from Latin -ālis, from Proto-Italic -ālis — forms relational adjectives.

Ancestry of “rywalka”, step by step

StepLanguageWordMeaning
1PolishrywalA male rival, competitor
2Frenchrivalrival
3LatinrīvālisOf or pertaining to a brook
4Latin-ālis—
5Proto-Italic-ālisforms relational adjectives
Every word from Proto-Italic -ālis →Every word from Latin -ālis →Every word from Latin rīvālis →