from
The Collaborative International Dictionary of English v.0.48
Perambulate \Per*am"bu*late\, v. t. [imp. & p. p.
{Perambulated}; p. pr. & vb. n. {Perambulating}.] [L.
perambulatus, p. p. of perambulare to perambulate; per
through + ambulare to walk. See {Per-}, and {Amble}.]
To walk through or over; especially, to travel over for the
purpose of surveying or examining; to inspect by traversing;
specifically, to inspect officially the boundaries of, as of
a town or parish, by walking over the whole line.
[1913 Webster]