Where does “Тама́ра” come from?

Тама́ра (Russian) comes from Hebrew תמר, from Aramaic תמרא — eyelid; dates; date palms.

Ancestry of “Тама́ра”, step by step

Step	Language	Word	Meaning
1	Hebrew	תמר	date; date palm, palm tree in general
2	Aramaic	תמרא	eyelid; dates; date palms

Тама́ра — Etymology, Origin & Word History | Etymology Explorer