Latin Fifth Declension Nouns

Basic paradigms

Case	Singular	Plural	Singular	Plural
Nominative	res	res	dies	dies
Genitive	rei	rerum	diei, die	dierum
Dative	rei	rebus	diei, die	diebus
Accusative	rem	res	diem	dies
Ablative	re	rebus	die	diebus
Locative	?	rebus	?	diebus
Vocative	res	res	dies	dies

Some fifth declension nouns

• dies, diei (die). m. or f., day.
  • meridies, -diei (-die). nm., midday.
• effigies, effigiei. nf., effigy, likeness, statue.
• fides, fidei. nf., faith.
• res, rei. nf., thing.
• plebes, plebei. nf., commoners. (Later in third declension plebs, plebis.  [q.v.])
• spes, spei. nf., hope.
• species, speciei (specie). nf., appearance.