IPA: /ˌæntəˈpɛndɪəm/
KK: /æntəˈpɛndɪəm/
A decorative cloth or fabric that hangs in front of an altar, lectern, or pulpit, often used in religious settings.
The church adorned its altar with a beautiful antependium for the holiday service.
Antependium is formed from "ante-" (meaning before or in front of) and "pendere" (meaning to hang). The word refers to a hanging cloth or decoration placed in front of an altar or a similar structure, thus literally meaning something that hangs in front.
Think of something that hangs 'in front of' ('ante-') a place, like a decorative cloth in a church.
No commonly confused words.