Often anti-. [L., f. ante before + pend-ĕre to hang: ‘velum quod antependet.’ Du Cange.] A veil or covering for the front of the altar, used in Roman Catholic and some Anglican churches; sometimes identified with a FRONTAL, which may be an ornamental panel.

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1696.  Phillips, Antipendium, a large silver-skreen that covers the front of a Popish Altar … hung on with skrews upon a high day.

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1716.  T. Ward, Eng. Ref., 51. On Beds they Antipendiums laid, Of Sacred Vestments Cushions made.

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1849.  Rock, Ch. of Fathers, I. iii. 236. The modern term for the frontal is ‘antependium.’

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1864.  Ainsworth, Tower Lond., 158. The altar, covered with a richly-ornamented antipendium.

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