i Register
In some senses, injoint is marked as obsolete. Watch for register when choosing this word.
verb
To disjoint; to separate.
The foresaid Bridge by a mightie tempest was injointed and broken.
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.