Dutch word nachtval comes from Dutch nacht (Night.), Dutch val

Detailed word origin of nachtval

Dictionary entry	Language	Definition
nacht	Dutch (nld)	Night.
val	Dutch (nld)	(obsolete) catfish (in compounds) case. (in compounds) nightfall. Downfall, demise. Fall (act of falling). Trap, snare.
nachtval	Dutch (nld)	Nightfall, sundown.