Where does “нервотрёпка” come from?

нервотрёпка (Russian) comes from Russian трёпка, from Russian -ка, from Proto-Slavic -ьka, from Proto-Balto-Slavic -ikaʔ, from Proto-Indo-European -ikeh₂.

нервотрёпка (Russian): stressful situation, nerve-wracking situation,...

Definitions

stressful situation, nerve-wracking situation,...

Ancestry of “нервотрёпка”, step by step

нервотрёпка traces back through two separate lines of ancestry.

via Russian трёпка

Step	Language	Word	Meaning
1	Russian	трёпка	ruffling, disheveling; blowing around; beating,...
2	Russian	-ка	now, just
3	Proto-Slavic	-ьka	—
4	Proto-Balto-Slavic	-ikaʔ	—
5	Proto-Indo-European	-ikeh₂	—

via Russian нерв

Step	Language	Word	Meaning
1	Russian	нерв	nerve
2	Latin	nervus	A sinew, tendon, nerve, muscle; A cord, string or...
3	Proto-Indo-European	(s)new-	—

Every word from Proto-Indo-European -ikeh₂ →Every word from Russian -ка →Every word from Proto-Slavic -ьka →