Aër
The Aër (Greek: Ἀήρ, lit. the "air"; modern Greek: Αέρας; Slavonic: Воздýхъ, Vozdúkh) is the largest and outermost of the veils covering the Chalice and Diskos (paten) during the Divine Services.
It is rectangular in shape and corresponds to the veil used to cover the chalice and paten in the Latin liturgical rites, but is larger. It is often made of the same material and color as the vestments of the officiating priest, and often has a fringe going all the way around its edge. Tassels may also be sewn at each of the corners.
It takes its name either from the lightness of the material of which it is made, or from the fact that during the Nicene Creed in the Divine Liturgy, the priest holds it high in the air and waves it slowly over the Chalice and Diskos. Its original use was to cover the Chalice and prevent anything from falling into it before the consecration. It symbolizes the swaddling clothes with which Christ was wrapped at his Nativity, and also the grave clothes in which he was wrapped at his burial (both themes are found in the text of the Liturgy of Preparation).
The Aër is first mentioned by name in an explanation of the Divine Liturgy by a writer of the sixth century, and is also alluded to as "the so-called Aër" in the Acts of the Council of Constantinople.
