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A light, late medieval helmet with a brim flaring in the back, sometimes fitted with a visor.
[Middle English salet, from Old French sallade, from Old Spanish celada or Old Italian celata, both probably from Latin caelāta (cassis), engraved (helmet), feminine past participle of caelāre, to engrave, from caelum, chisel; see kaə-id- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Arms & Armour (excluding Firearms)) a light round helmet extending over the back of the neck; replaced the basinet in the 15th century
[C15: from French salade, probably from Old Italian celata, from celare to conceal, from Latin]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a 15th-century helmet with a visor or visor slit and a protective extension for the neck.
[1400–50; < Middle French < Sp celada (or Italian celata) < Latin caelāta (cassis) engraved (helmet)]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.