intercalatory,a.rare.|ɪnˈtɜːkələtərɪ| [f. as prec. + -ory.] = intercalary. 1610Healey St. Aug. Citie of God 547 This month [February] was called nothing but the intercalatory month.1795–8T. Maurice Hindostan (1820) I. i. v. 153 It [the Metonic cycle]..has in it seven intercalatory months.