Wight Knight

Wiki says:

Wight is a Middle English word, from Old English wiht, and used to describe a creature or living sentient being. It is akin to Old High German wiht, meaning a creature or thing.
In its original usage the word wight described a living human being. More recently, the word has been used within the fantasy genre of literature to describe undead or wraith-like creatures: corpses with a part of their decayed soul still in residence, often draining life from their victims. Notable examples of this include the undead Barrow-Wights from the works of J. R. R. Tolkien and the wights of Dungeons & Dragons role-playing game.

 A knight is a member of the warrior class of the Middle Ages in Europe who followed a code of law called "chivalry". In other Indo-European languages, cognates of cavalier or rider are more prevalent (e.g., French chevalier and German Ritter), suggesting a connection to the knight's mode of transport. Since antiquity a position of honour and prestige has been held by mounted warriors such as the Greek hippeus and the Roman eques, and knighthood in the Middle Ages was inextricably linked with horsemanship