In heraldry, a cross (or other ordinary) cleché (clechée, clechy) flares out at the ends before tapering back to a point, in a shape resembling the bow of an old-fashioned key (French clé).J. B. Rietstap, Armorial General, glossary s.v. croix cléchée (p. xix): "Se dit des arrondissements de la croix de Toulouse, dont les quatre extrémités sont faites comme les anneaux des clés." An example is the Occitan cross or Cross of Toulouse in the coat of arms of the counts of Toulouse: Gules, a cross cléchée, pommetty and voided Or. Because this Occitan cross is also voided (hollow), some writersE.g. Pimbley's Dictionary of Heraldry have mistakenly taken the term cléché to be a synonym of voided or to include voiding as a defining feature.James Parker, A Glossary of Terms Used in Heraldry (James Parker & Co., 1894, reprinted David & Charles, 1970), in the entry on "Cross", pages 161–2
See also Cercelée, a similarly re-interpreted cross (originally similar to a cross moline)
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