cubula

Possibly from cubus (“a mass, quantity”) +‎ -ula This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term.

• (Classical Latin) IPA^(key): [ˈkʊ.bʊ.ɫa]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈkuː.bu.la]

cubula f (genitive cubulae); first declension

1. (Late Latin, rare) a kind of sacred cake
   • c. 303 CE, Arnobius, Against the Pagans 7.24:

     Quid fitilla, quid frumen, quid africia, quid gratilla, catumeum, conspolium, cubula? [....] Series vero, quae sequitur, liborum significantias continet

     What is the meaning of fitilla, frumen, africia, gratilla, catumeum, cumspolium, cubula? [....] while the series of names which follows denotes consecrated cakes.

First-declension noun.