Where does “лей” come from?

лей (Russian) comes from Romanian leu, from Latin leō, from Ancient Greek Λέων, from Ancient Greek λέων — lion; Leo, the zodiacal sign; lionheart, savage.

лей (Russian): leu; second-person singular imperative...

Definitions

leu; second-person singular imperative...

Ancestry of “лей”, step by step

Step	Language	Word	Meaning
1	Romanian	leu	lion; leu
2	Latin	leō	—
3	Ancient Greek	Λέων	lion
4	Ancient Greek	λέων	lion; Leo, the zodiacal sign; lionheart, savage

Every word from Ancient Greek λέων →Every word from Ancient Greek Λέων →Every word from Latin leō →