Like ghouls, gnomes and trolls, "wights" are a kind of supernatural creature whose details no one quite agrees on. Usually evilly affiliated and somehow related to The Undead, but even that is up for debate. Can be an umbrella term for any magical creature, and occasionally a wight is a poorly understood, vaguely undead creature in-universe as well as in its description.
The word comes from a [...] [tvtropes.org]