Where does “*Милкавец” come from?

*Милкавец (Bulgarian) comes from Proto-Slavic milъ, from Proto-Balto-Slavic meiʔlos, from Proto-Indo-European meyl-.

Ancestry of “*Милкавец”, step by step

StepLanguageWordMeaning
1Proto-Slavicmilъdear, nice, gentle, mild, soft, pleasant, polite
2Proto-Balto-Slavicmeiʔlos—
3Proto-Indo-Europeanmeyl-—
Every word from Proto-Indo-European meyl- →Every word from Proto-Balto-Slavic meiʔlos →Every word from Proto-Slavic milъ →