[antefixumpl. antefixes antefixa]
Plaque closing the outer end of the final cover tile in each row of overlapping cover tiles running down from the ridge to the eaves of a sloped roof on ancient Greek, Etruscan, Anatolian, Roman, and neoclassical buildings. Its practical functions were to prevent rain from penetrating below the cover tile and seeping through the opening between the adjacent pan tiles beneath, thus damaging the wooden roof beams, and to prevent wind from dislodging the row of cover tiles. Although functional in origin, the antefix soon also became a decorative element adorned with relief and/or painted decoration. The size and shape of early examples was determined by that of the cover tile, but by c. 550–525
The earliest antefixes, from the first half of the 7th century