injoint verb2 •(no longer used) To join; to unite.The Ottamites. Reueren'd, and Gracious, Steering with due course toward the Ile of Rhodes, Have there injointed with an after fleet. — 1603 •(no longer used) To disjoint; to separate.The foresaid Bridge by a mightie tempest was injointed and broken. — 1603 formsinjointed · injointing · injoints