1. [v]  unite in one common substance; "Thought is consubstantiated with the object"
2. [v]  become united in substance; "thought and the object consubstantiate"

CONSUBSTANTIATE is a 15 letter word that starts with C.

1. \Con`sub*stan"ti*ate\ (?; 106), v. t. [imp. & p.
   p. {Consubstantiated}; p. pr. & vb. n. {Consubstantiating}.]
   To cause to unite, or to regard as united, in one common
   substance or nature. [R.]
   
         His soul must be consubstantiated with reason. --Jer.
                                                  Taylor.
   
   

2. \Con`sub*stan"ti*ate\, v. i.
   To profess or belive the doctrine of consubstantion.
   
         The consubstantiating church and priest. --Dryden.
   
   

3. \Con`sub*stan"ti*ate\, a.
   Partaking of the same substance; united; consubstantial.
   
         We must love her [the wife] that is thus
         consubstantiate with us.                 --Feltham.