Lewis & Short

inter-jăcĭo and inter-jĭcĭo, jēci, jectum (in tmesi: inter enim jecta est, Lucr. 3, 859), 3, v. a. [jacio], to throw or cast between; to set, place, or put between; to join or add to, to intermix (class., most freq. in the part. pass.): legionarias cohortes, Caes. B. C. 1, 73: pleraque sermone Latino, Tac. A. 2, 10: id interjecit inter individuum, atque id, quod, etc., Cic. Univ. 7: preces ct minas, Tac. A. 1, 23: moram, id. H. 3, 81.
Hence, interjectus, a, um, Part., thrown or placed between; interposed, interspersed, intervening, intermingled, intermediate; constr. with dat. or inter.

        1. (α) With dat.: nasus oculis interjectus, Cic. N. D. 2, 57.
        2. (β) With inter: interjecti inter philosophos, et eos qui, etc., Cic. Off. 1, 26, 92: aer inter mare et caelum, id. N. D. 2, 26: inter has personas me interjectum amici moleste ferunt, id. Phil. 12, 7, 18.
        3. (γ) Absol.: quasi longo intervallo interjecto, as it were a great way off, id. Off. 1, 9: anno interjecto, after a year, id. Prov. Cons. 8: paucis interjectis diebus, after a few days, Liv. 1, 58.
        4. (δ) With Gr. acc.: erat interjecta comas, with loose, dishevelled hair, Claud. Epith. Pall. et Celer. 28 dub.
          Subst.: in-terjecta, ōrum, n. plur., places lying between, interjacent places: interjecta inter Romam et Arpos, Liv. 9, 13.

1. interjectus, a, um, Part., v. interjacio fin.

2. interjectus, ūs, m. [interjacio], a throwing or placing between, interposition; a coming between, intervention (class.).

  1. I. Lit.: lapides temerario interjectu ponere, App. de Deo, Soc. Prol. p. 365, 15: luna interpositu interjectuque terrae repente deficit, Cic. N. D. 2, 40, 103.
  2. II. Trop., an interval: petito paucorum dierum interjectu, Tac. A. 3, 67.
    Esp. abl. sing.: interjectu, after an interval, with an interval: temporis, Tac. A. 3, 51 fin.: noctis, after a night, id. ib. 6, 39: paucorum dierum, id. ib. 3, 67: parvi temporis, Aur. Vict. Epit. 48, 15.
    In plur.: interjectibus capere fructum, at various times, Col. 3, 21, 61.