English Wikipedia has an article on:

polyptych

Wikipedia

From Ancient Greek πολύπτυχος (polúptukhos, “with many folds”), from πολύς (polús, “many”) + πτυχή (ptukhḗ, “a fold”).

• IPA^(key): /ˈpɒlɪptɪk/

polyptych (plural polyptychs)

1. (art) A work consisting of multiple painted or carved panels joined together, often with hinges.
   • 2021 September 7, Reginald Wiebe, Polyptych: Adaptation, Television, and Comics, Vernon Press, →ISBN:

     [...], a polyptych is a painting with more than one section – a diptych is a painting in two parts or sections, a triptych in three, and so on. Perhaps the most famous polyptych is the Ghent Altarpiece by the early Flemish painters Hubert and Jan van Eyck.

• diptych
• triptych
• tetraptych, quadriptych