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).
Because this Occitan cross is also voided (hollow), some writers[3] have mistakenly taken the term cléché to be a synonym of voided or to include voiding as a defining feature.
[2] This article incorporates text from a publication now in the public domain: Chambers, Ephraim, ed.
Cyclopædia, or an Universal Dictionary of Arts and Sciences.
James and John Knapton, et al. p. 233.