Where does “домбра” come from?

домбра (Russian) comes from Kazakh домбыра, from Persian دنب بره — lamb's tail.

Ancestry of “домбра”, step by step

Step	Language	Word	Meaning
1	Kazakh	домбыра	dombra
2	Persian	دنب بره	lamb's tail

домбра — Etymology, Origin & Word History | Etymology Explorer