architrave

 
Pronunciation: /ˈɑːkɪtreɪv/

noun

  • 1(in classical architecture) a main beam resting across the tops of columns.
  • 2the moulded frame around a doorway or window.
  • a moulding round the exterior of an arch.

Origin:

mid 16th century: from French, from Italian, from archi- 'chief' + -trave from Latin trabs, trab- 'a beam'