Where does “смрад” come from?

смрад (Russian) comes from Old Church Slavonic смрадъ, from Proto-Slavic smȏrdъ, from Proto-Balto-Slavic smorʔdos, from Proto-Indo-European smord-o-s.

смрад (Russian): stench, stink

Definitions

stench, stink

Ancestry of “смрад”, step by step

Step	Language	Word	Meaning
1	Old Church Slavonic	смрадъ	stench
2	Proto-Slavic	smȏrdъ	—
3	Proto-Balto-Slavic	smorʔdos	—
4	Proto-Indo-European	smord-o-s	—

Every word from Proto-Indo-European smord-o-s →

смрад — Etymology, Origin & Word History | Etymology Explorer