Words related to hobgoblin
early 14c., "a devil, incubus, mischievous and ugly fairy," from Norman French gobelin (12c., as Medieval Latin Gobelinus, the name of a spirit haunting the region of Evreux, in chronicle of Ordericus Vitalis), of uncertain origin; said to be unrelated to German kobold (see cobalt), or from Medieval Latin cabalus, from Greek kobalos "impudent rogue, knave," kobaloi "wicked spirits invoked by rogues," of unknown origin. Another suggestion is that it is a diminutive of the proper name Gobel.
Though French gobelin was not recorded until almost 250 years after appearance of the English term, it is mentioned in the Medieval Latin text of the 1100's, and few people who believed in folk magic used Medieval Latin. [Barnhart]
Thou schalt not drede of an arowe fliynge in the dai, of a gobelyn goynge in derknessis [Psalms xci.5 in the later Wycliffe Bible, late 14c.]
"clumsy or awkward youth," 1530s, of uncertain origin and the subject of much discussion. Suspicion has focused on French or Anglo-French, but no appropriate word has been found there. First element is probably hob in its sense of "clown, prankster" (see hobgoblin), the second element perhaps is French de haye "worthless, untamed, wild," literally "of the hedge."