coquille
Co*quille" (ko*kel"; F. ko`ke"y'), n. [F.] Lit., a shell; hence: (a) A shell or shell-like dish or mold in which viands are served. (b) The expansion of the guard of a sword, dagger, etc. (c) A form of ruching used as a dress trimming or for neckwear, and named from the manner in which it is gathered or fulled. [Webster 1913 Suppl.]