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

 

architrave

 noun
noun
BrE BrE//ˈɑːkɪtreɪv//
 
; NAmE NAmE//ˈɑːrkɪtreɪv//
 
(specialist)
 
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the frame around a door or window Word Origin mid 16th cent.: from French, from Italian, from archi- ‘chief’ + -trave from Latin trabs, trab- ‘a beam’.
See the Oxford Advanced American Dictionary entry: architrave