Notes

Note 1: H was pronounced only by educated speakers even in the classical period, and references to its loss in vulgar speech are frequent.

Note 2: Long vowels are indicated by a macron (ā, ē, ī, ō, ū)

Note 3 - Traditional Latin missals and breviaries do not use macrons but accent marks instead.

Note 4 - Most of the first declension nouns are feminine. It has few masculine nouns.
Note 5 - Caelum in the singular is neuter in the plural, it is masculine. The singular and plural are used interchangeably

angelus caeli/caelorum = angel of heaven