Where does “współwięźniarka” come from?

współwięźniarka (Polish) comes from Polish więźniarka, from Polish -arka, from Polish -arz, from Old Polish -arz, from Proto-Slavic -ařь, from Gothic -𐌰𐍂𐌴𐌹𐍃, from Proto-Germanic -ārijaz, from Latin -ārius — Forms relational adjectives to nouns (and rarely numerals).

Ancestry of “współwięźniarka”, step by step

StepLanguageWordMeaning
1Polishwięźniarkaprisoner transport vehicle, paddy wagon, meat wagon
2Polish-arka-er
3Polish-arz-er
4Old Polish-arzforms agent nouns
5Proto-Slavic-ařь-er
6Gothic-𐌰𐍂𐌴𐌹𐍃-er
7Proto-Germanic-ārijaz-er
8Latin-āriuser
9Proto-Italic*-āziosForms relational adjectives to nouns (and rarely numerals)
Every word from Proto-Italic *-āzios