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. [ 1913 Webster ]
According to which the least body may be coextended with the greatest. Boyle. [ 1913 Webster ]
Has your English language one single word that is coextended through all these significations? Bentley. [ 1913 Webster ]