Where does “meda” come from?

meda (Pali) comes from Sanskrit मेदस्, from Sanskrit अस्, from Proto-Indo-European h₁ēs-.

meda (Pali): fat

Definitions

Step	Language	Word	Meaning
1	Sanskrit	मेदस्	fat, marrow, lymph; excessive fatness, corpulence
2	Sanskrit	अस्	to be; to throw
3	Proto-Indo-European	h₁ēs-	—

meda — Etymology, Origin & Word History | Etymology Explorer