Source : Webster's Revised Unabridged Dictionary (1913)

Vault \Vault\, v. t. [imp. & p. p. {Vaulted}; p. pr. & vb. n.
   {Vaulting}.] [OE. vouten, OF. volter, vouter, F. vo[^u]ter.
   See {Vault} an arch.]
   1. To form with a vault, or to cover with a vault; to give
      the shape of an arch to; to arch; as, vault a roof; to
      vault a passage to a court.

            The shady arch that vaulted the broad green alley.
                                                  --Sir W.
                                                  Scott.

   2. [See {Vault}, v. i.] To leap over; esp., to leap over by
      aid of the hands or a pole; as, to vault a fence.

            I will vault credit, and affect high pleasures.
                                                  --Webster
                                                  (1623).

Vaulted \Vault"ed\, a.
   1. Arched; concave; as, a vaulted roof.

   2. Covered with an arch, or vault.

   3. (Bot.) Arched like the roof of the mouth, as the upper lip
      of many ringent flowers.

Source : WordNet®

vaulted
     adj : having a hemispherical vault or dome [syn: {domed}]