Where does “Merle” come from?

Merle (Estonian) comes from English Merle, from Middle English merle, from Old French merle, from Latin merula, from Proto-Italic meselā, from Proto-Indo-European h₂ems- — to give birth, beget.

Ancestry of “Merle”, step by step

Step	Language	Word	Meaning
1	English	Merle	of origin
2	Middle English	merle	—
3	Old French	merle	—
4	Latin	merula	blackbird; wrasse
5	Proto-Italic	meselā	—
6	Proto-Indo-European	h₂ems-	to give birth, beget

Every word from Proto-Indo-European h₂ems- →Every word from Proto-Italic meselā →Every word from Latin merula →