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fess 1also fesse (fĕs)
A wide horizontal band forming the middle section of an escutcheon.
[Middle English fesse, from Old French, from Latin fascia, band.]
intr.v. fessed, fess·ing, fess·es Informal
To admit to something; confess, often used with up: "won't fess up to being even vaguely liberal" (Jonathan Alter).
[Short for confess.]
(Heraldry) heraldry an ordinary consisting of a horizontal band across a shield, conventionally occupying a third of its length and being wider than a bar
[C15: from Anglo-French fesse, from Latin fascia band, fillet]