WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adverb.
at or in an indicated (usually distant) place (`yon' is archaic and dialectal)
adjective.
distant but within sight (`yon' is dialectal)
Word Usage
"The making-up of the Madras into a turban is called "tying a head" (_marré yon tête_); and a prettily folded turban is spoken of as "a head well tied" (_yon tête bien marré_) ...."