fess 1 also fesse (fěs) n.
Heraldry A wide horizontal band forming the middle section of an escutcheon.
[Middle English fesse, from Old French, from Latin fascia, band.]
fess 2 (fěs) intr.v.
fessed, fess·ing, fess·esInformal To admit to something; confess, often used with up:"won't fess up to being even vaguely liberal"(Jonathan Alter).