Where does “раздражити” come from?

раздражити (Serbo-Croatian) comes from Serbo-Croatian дражити, from Proto-Slavic dražiti, from Proto-Indo-European dʰreh₂gʰ- — to irritate; rough.

Ancestry of “раздражити”, step by step

Step	Language	Word	Meaning
1	Serbo-Croatian	дражити	to irritate, provoke, tease; to excite, arouse
2	Proto-Slavic	dražiti	to provoke, annoy; to irritate
3	Proto-Indo-European	dʰreh₂gʰ-	to irritate; rough

раздражити — Etymology, Origin & Word History | Etymology Explorer