nightfright means fear of the night, nyctophobia, noctophobia. Lexicurio rates it Sui generis — a strength score of 88 out of 100.
Etymology
From night + fright.
noun
- Fear of the night, nyctophobia, noctophobia“Though we have had stage windows before, and by the thousands, I don't think I have ever seen this particular use made of them: the sense of air, of nightfright beyond the walls, of extended dimension is so palpable that you believe in the continuing world past the leaded-glass door, half-imagine that you can remember the street-address tacked over it.”
- A terror or fright typically occurring at night.“In the warm light she looked like a little girl who has suffered a night-fright.”