Sallet

Sallet (sal"let) , noun

[French salade, Sp. celada, or Italian celata, from Latin (cassis) caelata, from caelare, caelatum, to engrave in relief. So called from the figures engraved upon it.]

A light kind of helmet, with or without a visor, introduced during the 15th century.

Then he must have a sallet wherewith his head may be saved. — Latimer

Sallet , noun

Salad. [Obsolete] — Shakespeare

Also: Salleting