Where does “miodzio” come from?

miodzio (Polish) comes from Polish miód, from Proto-Slavic mȅdъ, from Proto-Balto-Slavic médu, from Proto-Indo-European médʰu — honey; honey wine, mead.

Ancestry of “miodzio”, step by step

Step	Language	Word	Meaning
1	Polish	miód	honey
2	Proto-Slavic	mȅdъ	honey
3	Proto-Balto-Slavic	médu	honey
4	Proto-Indo-European	médʰu	honey; honey wine, mead

Every word from Proto-Indo-European médʰu →Every word from Proto-Balto-Slavic médu →Every word from Proto-Slavic mȅdъ →