Where does “Cały” come from?

Cały (Polish) comes from Polish -o-, from Old Polish -o-, from Proto-Slavic -o-.

Ancestry of “Cały”, step by step

Step	Language	Word	Meaning
1	Polish	-o-	—
2	Old Polish	-o-	—
3	Proto-Slavic	-o-	—

Cały — Etymology, Origin & Word History | Etymology Explorer