Sallet or Salet, a head-piece introduced in the early 15th century replacing the heavy helmet. Its essential features are its smooth rounded surface, like an inverted bowl, and its long projecting neck guard. Usually there was no movable vizor, but the front fixed part covered most of the face, a slit being left for the eyes. The word is said to come through the Old Fr. from the Span. celada, Ital. celata, Lat. caelata. sc. cassis, engraved helmet, caelare, to engrave, chase (see Helmet) .