lintel

UK: /ˈlɪnt^əl/ US: /ˈlɪntəl/ ,(lin′tl)

WordReference Random House Learner's Dictionary of American English © 2025

lin•tel /ˈlɪntəl/   n. [countable]

1. British Terms, Architecture a piece of wood or stone supporting the weight above an opening, as a door.

WordReference Random House Unabridged Dictionary of American English © 2025

lin•tel  (lin′tl), n. 

1. British Terms, Architecture a horizontal architectural member supporting the weight above an opening, as a window or a door.

Also, lin′tol. 

• Latin līmitāris origin, originally, belonging to or indicating a boundary; later taken as synonym of līmināris origin, originally, of the threshold. See limit, -ar¹
• Middle French lintel, dissimilated variant of *linter
• Middle English lyntel 1350–1400

Collins Concise English Dictionary © HarperCollins Publishers::

lintel / ˈlɪnt^əl/ noun

1. a horizontal beam, as over a door or window

Etymology: 14th Century: via Old French probably from Late Latin līmitāris (unattested) of the boundary, influenced in meaning by līminaris of the threshold