Anta (architecture)
An anta (pl. antæ, antae, or antas; Latin, possibly from ante, "before" or "in front of"), or sometimes parastas (pl. parastades), is a term in classical architecture describing the posts or pillars on either side of a doorway or entrance of a Greek temple – the slightly projecting piers which terminate the side walls (of the naos). Antae are formed either by thickening the walls or by attaching a separate strip and can serve to reinforce brick walls, as in the Heraeum of Olympia (c. 600 BCE).
Antae differ from the pilaster, which is purely decorative, and does not have the structural support function of the anta.