From Wiktionary, the free dictionary
- 1st declension: masculine nouns that are monosyllabic, end in -el, or are stressed on the final syllable
- 2nd declension: feminine monosyllabic nouns
- 3rd declension: neuter monosyllabic nouns
- 4th declension: masculine nouns that end in -o
- 5th declension: feminine nouns that end in -en
- 6th declension: feminine nouns that end in -a, and nouns suffixed with the diminutive-forming -le, which are always neuter
- 7th declension: masculine nouns that end in -ar
- 8th declension: neuter nouns that end in -ar
