cameratio

camerō (“I vault or arch over”, perfect passive participial stem: camerāt-) +‎ -iō (“-ing”, suffix forming verbal nouns)

• (Classical Latin) IPA^(key): [ka.mɛˈraː.ti.oː]
• (modern Italianate Ecclesiastical) IPA^(key): [ka.meˈrat̪.t̪͡s̪i.o]

camerātiō f (genitive camerātiōnis); third declension

1. (noun of action) an arching or vaulting
2. (concrete noun) a vault or arch
3. (by extension) a vaulted building

Third-declension noun.

• English: cameration

• “cămĕrātĭo”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “cămĕrātĭo”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette, page 250/1.