caelum, caeli (n)
heaven / sky Nouns: The Divine
2nd declension neuter. Pater noster qui es in caelis. Often used in plural caelis
In Scripture
Et dicit ei : Amen, amen dico vobis, videbitis cælum apertum, et angelos Dei ascendentes, et descendentes supra Filium hominis.
And he saith to him: Amen, amen, I say to you, you shall see the heaven opened and the angels of God ascending and descending upon the Son of man.
Ioannes 1 · 51