INTERQUEL

n. A television production that dramatizes a story lying temporally between the story in the original production and that of its sequel. [Analogical formation from model word sequel, first extension prequel via recutting to form new morpheme quel; then prefixed with inter- 'between'] Context and source: "Having written and filmed a "Lonesome Dove" sequel and prequel, come about 1997 Mr. McMurtry plans to finish an interquel "Comanche Moon," about his heroes' prime adulthood." (New York Times 5/12/96)