Lexicon

A B C D E F G H I J K L M N O P Q R S T U V
Ab Ac Ad Ai Al Am An Ar As Au
Arc Arr

Architrave

noun

  1. (in classical architecture) a main beam resting across the tops of columns, specifically the lower third entablature
  2. the molded frame around a doorway or window, or a molding around the exterior of an arch

[“The Island” — Lord Byron]