interjoin

inter- +‎ join

interjoin (third-person singular simple present interjoins, present participle interjoining, simple past and past participle interjoined)

1. (mathematics) To interconnect two sets.
2. (transitive, intransitive) To join mutually; to unite.
   • c. 1607, William Shakespeare, Coriolanus, Act IV, Scene 4,

     […] so, fellest foes,

     Whose passions and whose plots have broke their sleep,

     To take the one the other, by some chance,

     Some trick not worth an egg, shall grow dear friends

     And interjoin their issues.

   • 1673, John Ogilby (translator), An Embassy from the East-India Company of the United Provinces, to the Grand Tartar Cham, Emperor of China by Johan Nieuhof, London: for the author, Appendix, Chapter 5, p. 365,

     […] it is most probable to be the Port of Trapezonment, plac’d in a Corner of the Euxine Sea; for from this Port, within a few Months, Anno 1272. they came to Ancona, which could not be perform’d from the Caspian Sea, by reason of the great space of Land and Regions interjoin’d.

   • 1843, James Abbott, Narrative of a Journey from Heraut to Khiva, Moscow, and St. Petersburgh, London: William H. Allen & Co., Volume I, Chapter 19, p. 259,

     The Kuzzauk salutation is made, by interjoining the four hands.

   • 1914, Thomas Hardy, “The Abbey Mason” in Satires of Circumstance, London: Macmillan, 1915, p. 220,

     […] seek the quoin

     Where choir and transept interjoin,

   • 1987, James Herbert, Sepulchre, New York: G.P. Putnam’s Sons, 1988, Chapter 32, p. 229,

     He feebly lifted an arm, but the darkness was even greater inside the shroud, and all he could see was a myriad of interjoining cracks.

3. To say by way of interruption, to interject.
   • 1812, Medora Gordon Byron, The Englishman, London: A.K. Newman, Volume I, Chapter 7, p. 195,

     “No, no,” cried lady Anna, in trepidation, “leave him—let him go.”

     Lennard unloosed his hold for a moment; and regarding her ladyship with a look of jealous anger, he stood irresolute.

     “Leave him,” interjoined Wentworth. “He has abused the privileges of a social meeting, by venting the preconcerted acumen of a malicious nature; he is beneath your contempt.”

   • 1821, Arabella Argus, Ostentation and Liberality, London: William Darton, Volume I, Chapter , p. 33,

     “Oh! you can have no idea of its gaiety,” returned Frances; “and such a quantity of people.”

     “A number of persons, and a quantity of goods,” interjoined Miss Colville.

   • 1899, Kate Chopin, The Awakening, Chicago and New York: Herbert S. Stone, Chapter 5, pp. 26-27,

     “Perhaps I feared to make Alphonse jealous,” she interjoined, with excessive naïveté. That made them all laugh.

   • 1972, Sara Hely, The Legend of the Green Man, Greenwich, Connecticut: Fawcett, 1974, Chapter 7, p. 79,

     “ […] If the notice is not too short for you, Fossick, why not join us?”

     “A capital plan, Fossick,” interjoined the judge […]

• Webster's Revised Unabridged Dictionary