What is the origin of hobgoblin?
Hobgoblin is a compound of the nouns hob and goblin. Hob (also Hobbe), a pet form or nickname of Robin or Robert, was used as early as the 15th century as a shortened form of Robin Goodfellow, a.k.a. Puck (as in Shakespeare’s A Midsummer Night’s Dream) and a.k.a. Hobgoblin (i.e., the common noun used as a personal name). Goblin comes from Middle English gobelin goblin, gobolin “a devil, incubus, fairy,” from Middle French gobellin. Further etymology is uncertain and speculative: The French forms may come from Medieval Latin gobelīnus, from an unrecorded Late Latin gobalus, cabalus “domestic sprite,” from Greek kóbalos “malicious knave, mischievous genie.” The Latin suffix –īnus and French suffix –in complete the word. Hobgoblin entered English in the first half of the 16th century.