Where does “nerve-jangling” come from?

nerve-jangling (English) comes from English nerve, from Middle English nerve, from Medieval Latin nervus, from Latin nervus, from Proto-Indo-European (s)new-.

Ancestry of “nerve-jangling”, step by step

nerve-jangling traces back through two separate lines of ancestry.

via English nerve

StepLanguageWordMeaning
1EnglishnerveA bundle of neurons with their connective tissue...
2Middle EnglishnerveA nerve bundle of neurons
3Medieval Latinnervusnerve; A sinew, tendon, nerve, muscle; A cord,...
4LatinnervusA sinew, tendon, nerve, muscle; A cord, string or...
5Proto-Indo-European(s)new-

via English jangling

StepLanguageWordMeaning
1EnglishjanglingA jangle, the sounds of a jangle; present...
Every word from Proto-Indo-European (s)new-Every word from Latin nervusEvery word from Medieval Latin nervus