[f. CASQUET + dim. suff. -EL. App. not in Fr.] ‘A small open helmet of a light kind, without beaver or visor, having a projecting umbril, and flexible plates to cover the neck behind’ (Fairholt).
1795. Southey, Joan of Arc, IX. 230. With a light and unplumed casquetel She helm’d her head.
1834. Planché, Brit. Costume, 195. Casquetels or steel caps … are seen in the illuminations of this reign [Hen. VI.].
