Where does “rozgrzewka” come from?
rozgrzewka (Polish) comes from Polish rozgrzewać, from Polish rozgrzać, from Polish grzać, from Proto-Slavic grěti, from Proto-Indo-European gʷʰer-, from Proto-Indo-European gʷʰe-gʷʰór-e ~ gʷʰe-gʷʰr-ḗr.
rozgrzewka (Polish): warm-up
Ancestry of “rozgrzewka”, step by step