As verbs the difference between jees and jess
is that
jees is (
jee) while
jess is (falconry) to fasten a strap around the leg of a hawk.
As a noun jess is
(falconry) a short strap fastened around the leg of a bird used in falconry, to which a leash may be fastened or
jess can be a compact coal-like, velvet-black mineral, with a polish making it fit for use in jewelry.