Other forms: pediments
A pediment is the triangular piece above the columns of a classical front. A broken pediment, carved pediment, the pediment above the door.
It began as the gable end of a Greek roof and became purely decorative, appearing over doors and windows on buildings with no columns at all. A broken pediment has a gap in the middle, which is a baroque flourish.
1nounpedimentThe triangular piece above the columns of a classical front.
“The museum's pediment is carved with gods and heroes above the tall columns.”
pediment is a feature.
Perhaps an alteration of pyramid, influenced by the ending -ment.
From the earlier form peremint, perhaps a dialectal alteration of a doublet of pyramid, under the influence of -ment.
Etymology from Wiktionary, CC BY-SA