Vault (?), v. t. [imp. & p. p.Vaulted; p. pr. & vb. n.Vaulting.] [OE. vouten, OF. volter, vouter, F. voûter. 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, to 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).