Where does “startlingness” come from?

startlingness (English) comes from English Ness, from Middle English nesse, from Old English næs, from Proto-Germanic nasją, from Proto-Indo-European néh₂s — nose.

startlingness (English): The quality of being startling

Definitions

  1. The quality of being startling

Ancestry of “startlingness”, step by step

startlingness traces back through two separate lines of ancestry.

via English Ness

StepLanguageWordMeaning
1EnglishNessAn Ulster princess and the mother of Conchobar mac Nessa and Findchoem in the Ulster Cycle of Irish mythology. Daughter of Eochaid Sálbuide. Also the mother of Cormac Cond Longas by incest with Conchobar mac Nessa
2Middle Englishnesse
3Old Englishnæsnot, not at all; not; first/third-person singular...
4Proto-Germanicnasjąfoothill; headland; cape
5Proto-Indo-Europeannéh₂snose

via English startling

StepLanguageWordMeaning
1EnglishstartlingPresent participle and gerund of startle; Likely...
2EnglishstartleTo move suddenly, or be excited, on feeling...
3Middle Englishstartlen
4Old Englishsteartlianto kick or struggle; to caper; to react with fear
Every word from Proto-Indo-European néh₂sEvery word from Proto-Germanic nasjąEvery word from Old English næs