coextend

From co- +‎ extend.

coextend (third-person singular simple present coextends, present participle coextending, simple past and past participle coextended)

1. (ambitransitive) To extend along with another.
   • 1656, Thomas Hobbes, “Of Body and Accident”, in anonymous translator, Elements of Philosophy, the First Section, Concerning Body. […], London: […] R[obert] & W[illiam] Leybourn for Andrew Crooke, […], →OCLC, part 2 (The First Grounds of Philosophy), paragraph 1, page 74:

     It is neceſſary therefore that this nevv created or replaced thing do not onely fill ſome part of the Space [i.e. “imaginary space”] above-mentioned, or be coincident and coextended vvith it, but alſo, that it have no dependance upon our thought.

• coextension

• contexed