quadrinus

Latin

Latin numbers ^(edit)

	40
[a], [b] ←  3	IV 4	5  →
Cardinal: quattuor     Ordinal: quārtus     Adverbial: quater     Proportional: quadruplus     Multiplier: quadruplex, quadriplex     Distributive: quaternus, quadrīnus     Collective: quaterniō     Fractional: quadrāns, teruncius

Etymology

Analogous formation after the organic trīnus, from quadri- +‎ -nus.

Pronunciation

• (Classical Latin) IPA^(key): /kʷaˈdriː.nus/, [kʷäˈd̪riːnʊs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /kwaˈdri.nus/, [kwäˈd̪riːnus]

Numeral

quadrīnus (feminine quadrīna, neuter quadrīnum); first/second-declension numeral

1. four each
2. quadruple
3. (pluralibus tantum) four

Declension

First/second-declension adjective.

Number	Singular				Plural
Case / Gender	Masculine	Feminine	Neuter		Masculine	Feminine	Neuter
Nominative	quadrīnus	quadrīna	quadrīnum		quadrīnī	quadrīnae	quadrīna
Genitive	quadrīnī	quadrīnae	quadrīnī		quadrīnum quadrīnōrum	quadrīnum quadrīnārum	quadrīnum quadrīnōrum
Dative	quadrīnō		quadrīnō		quadrīnīs
Accusative	quadrīnum	quadrīnam	quadrīnum		quadrīnōs	quadrīnās	quadrīna
Ablative	quadrīnō	quadrīnā	quadrīnō		quadrīnīs
Vocative	quadrīne	quadrīna	quadrīnum		quadrīnī	quadrīnae	quadrīna

References

• quadrini in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
• “quadrini”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press