Where does “night-fear” come from?

night-fear (English) comes from English night, from Middle English nyght, from Middle English nighte, from Old English nyht, from Proto-West Germanic naht, from Proto-Germanic nahts, from Proto-Indo-European nókʷts, from Proto-Indo-European negʷ- — bare, naked.

Ancestry of “night-fear”, step by step

night-fear traces back through two separate lines of ancestry.

via English night

StepLanguageWordMeaning
1EnglishnightThe period between sunset and sunrise, when a...
2Middle EnglishnyghtAlternative form of nighte; Alternative form of...
3Middle Englishnightenight
4Old EnglishnyhtAlternative form of niht
5Proto-West Germanicnahtnight
6Proto-Germanicnahtsnight
7Proto-Indo-Europeannókʷtsnight
8Proto-Indo-Europeannegʷ-bare, naked

via English fear

StepLanguageWordMeaning
1EnglishfearA strong, uncontrollable, unpleasant emotion or...
2Middle Englishferefear
3Old Englishfēreable to go, fit for service
4Proto-Germanicfērizcrossing, able to cross
5Proto-Indo-Europeanper-before, in front; first; to go through
6Proto-Indo-Europeanpr̥tóspassed , crossed
Every word from Proto-Indo-European negʷ-Every word from Proto-Indo-European nókʷtsEvery word from Proto-Germanic nahts