Where does “Imiołek” come from?

Imiołek (Polish) comes from Polish jemioła, from Proto-Slavic jьmela.

Ancestry of “Imiołek”, step by step

Step	Language	Word	Meaning
1	Polish	jemioła	mistletoe, any plant of the genus "Viscum"
2	Proto-Slavic	jьmela	—

Imiołek — Etymology, Origin & Word History | Etymology Explorer