Where does “medra” come from?

medra (Ladino) comes from Old Spanish mierda, from Latin merda, from Proto-Italic (s)merdā, from Proto-Indo-European smerd-h₂- — stench.

medra (Ladino): shit

Definitions

Step	Language	Word	Meaning
1	Old Spanish	mierda	shit
2	Latin	merda	dung, excrement, shit
3	Proto-Italic	(s)merdā	—
4	Proto-Indo-European	smerd-h₂-	stench

medra — Etymology, Origin & Word History | Etymology Explorer