Colloquial slang for an individual who is highly capable of surviving in the wilderness of the Badlands. The phrase also denotes a smuggler who makes nocturnal traverses through the desert to ferry supplies and contraband between Withmore City and surrounding occupied settlements.
The term is a bastardization of two words--night and runner--and is derived from a much-utilized survival tactic of moving through the desert at night.
Early reports indicate that the term originated from the creation of a smuggling ring known as the Nightrunner Clan. As word spread of the exploits of this smuggling ring, the term extended to other highly capable individuals with the survival skills required to traverse long distances in the desert alone, armed, and oftentimes on foot.
See also: Glass Walker