The Collaborative International Dictionary of English v.0.48:

Enthrone \En*throne"\, v. t. [Pref. en- + throne: cf. OF.
   enthroner. Cf. Inthronize.]
   1. To seat on a throne; to exalt to the seat of royalty or of
      high authority; hence, to invest with sovereign authority
      or dignity.
      [1913 Webster]

            Beneath a sculptured arch he sits enthroned. --Pope.
      [1913 Webster]

            It [mercy] is enthroned in the hearts of kings.
                                                  --Shak.
      [1913 Webster]

   2. (Eccl.) To induct, as a bishop, into the powers and
      privileges of a vacant see.
      [1913 Webster]

WordNet (r) 3.0 (2006):

enthrone
    v 1: provide with power and authority; "They vested the council
         with special rights" [syn: invest, vest, enthrone]
         [ant: disinvest, divest]
    2: put a monarch on the throne; "The Queen was enthroned more
       than 50 years ago" [syn: enthrone, throne] [ant:
       dethrone]