Where does “unnervous” come from?

unnervous (English) comes from English nervous, from Middle English nervous, from Latin nervosus, from Latin nervus, from Proto-Indo-European (s)new-.

unnervous (English): Not nervous

Definitions

  1. Not nervous

Ancestry of “unnervous”, step by step

unnervous traces back through two separate lines of ancestry.

via English nervous

StepLanguageWordMeaning
1Englishnervous"Of sinews and tendons."; "Of nerves."
2Middle Englishnervouscontaining nerves; made up of nerve-like fibres;...
3Latinnervosussinewy; nervous; vigorous, energetic
4LatinnervusA sinew, tendon, nerve, muscle; A cord, string or...
5Proto-Indo-European(s)new-

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Proto-Indo-European (s)new-