Arch. [F. crossette, in 16th c. crocette, dim. of croce, crosse crutch, crook, staff, etc.: see CROSE.] A projection or ear in the architrave or casing around a door- or window-opening, at the junction of the jamb and head; also a shoulder or ledged projection in the voussoir of a built-up architrave or flat arch, which rests in a corresponding recess in the adjoining voussoir and strengthens the construction; see quot. 1819.
1730–6. Bailey (folio), Crosette … the returns in the corners of … door cases or window-frames.
1819. P. Nicholson, Archit. Dict., I. 303. Crosettes, in the decorations of apertures, the trusses or consoles on the flanks of the architrave, under the cornice.
1853. in Archit. Publ. Soc. Dict.
1876. Gwilt, Archit., Gloss., Crossettes … the small projecting pieces … in arch stones, which hang upon the adjacent stones.
