cavaedium

[kuh-vee-dee-uh m, kah-, key-] /kəˈvi di əm, kɑ-, keɪ-/
noun, plural cavaedia
[kuh-vee-dee-uh, kah-, key-] /kəˈvi di ə, kɑ-, keɪ-/ (Show IPA)
1.
atrium (def 1a).
Origin
< Latin, contraction of cavum aedium, literally, hollow of rooms (i.e. house); see cave, edifice