Where does “леш” come from?

леш (Macedonian) comes from Ottoman Turkish لاش, from Persian لاش, from Middle Persian lšt — corpse.

леш (Macedonian): corpse

Definitions

Step	Language	Word	Meaning
1	Ottoman Turkish	لاش	carrion, carcass
2	Persian	لاش	corpse, carrion; loot, booty, plunder
3	Middle Persian	lšt	corpse

леш — Etymology, Origin & Word History | Etymology Explorer