Definition of trencher noun from the Oxford Advanced Learner's Dictionary

 

trencher

 noun
noun
BrE BrE//ˈtrentʃə(r)//
 
; NAmE NAmE//ˈtrentʃər//
 
 
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a wooden plate used in the past for serving food Word Origin Middle English: from Anglo-Norman French trenchour, from Old French trenchier ‘to cut’, based on Latin truncare ‘to maim’.
See the Oxford Advanced American Dictionary entry: trencher