Source : Webster's Revised Unabridged Dictionary (1913)

Coextend \Co`ex*tend\, v. t. [imp. & p. p. {Coextended}; p. pr.
   & vb. n. {Coextending}.]
   To extend through the same space or time with another; to
   extend to the same degree.

         According to which the least body may be coextended
         with the greatest.                       --Boyle.

         Has your English language one single word that is
         coextended through all these significations? --Bentley.