NOUN (2)

1. the molding around a door or window;

2. the lowest part of an entablature; rests immediately on the capitals of the columns;

The Collaborative International Dictionary of English v.0.48:

Architrave \Ar"chi*trave\, n. [F. architrave, fr. It.
   architrave; pref. archi- + trave beam, L. trabs.] (Arch.)
   (a) The lower division of an entablature, or that part which
       rests immediately on the column, esp. in classical
       architecture. See Column.
   (b) The group of moldings, or other architectural member,
       above and on both sides of a door or other opening,
       especially if square in form.
       [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Epistyle \Ep"i*style\, n. [L. epistylium, Gr. ?; 'epi` upon + ?
   column: cf. F. ['e]pistyle.] (Anc. Arch.)
   A massive piece of stone or wood laid immediately on the
   abacus of the capital of a column or pillar; -- now called
   architrave.
   [1913 Webster]

WordNet (r) 3.0 (2006):

architrave
    n 1: the molding around a door or window
    2: the lowest part of an entablature; rests immediately on the
       capitals of the columns