Iunius

• iūnius, Jūnius, jūnius

From Iūnō +‎ -ius.

• (Classical Latin) IPA^(key): /ˈi̯uː.ni.us/, [ˈi̯uːniʊs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈju.ni.us/, [ˈjuːnius]

Iūnius (feminine Iūnia, neuter Iūnium); first/second-declension adjective

1. Of the Junian gens
2. of June

In Classical Latin, month names were regularly used as adjectives, generally modifying a case-form of mēnsis m sg (“month”) or of one of the nouns used in the Roman calendar to refer to specific days of the month from which other days were counted: Calendae f pl (“calends”), Nōnae f pl (“nones”), Īdūs f pl (“ides”). However, the masculine noun mēnsis could be omitted by ellipsis, so the masculine singular forms of month names eventually came to be used as proper nouns.^[1]

First/second-declension adjective.

Number	Singular				Plural
Case / Gender	Masculine	Feminine	Neuter		Masculine	Feminine	Neuter
Nominative	Iūnius	Iūnia	Iūnium		Iūniī	Iūniae	Iūnia
Genitive	Iūniī	Iūniae	Iūniī		Iūniōrum	Iūniārum	Iūniōrum
Dative	Iūniō		Iūniō		Iūniīs
Accusative	Iūnium	Iūniam	Iūnium		Iūniōs	Iūniās	Iūnia
Ablative	Iūniō	Iūniā	Iūniō		Iūniīs
Vocative	Iūnie	Iūnia	Iūnium		Iūniī	Iūniae	Iūnia

Iūnius m (genitive Iūniī or Iūnī); second declension

1. Junius; a Roman nomen gentile, gens or "family name".
2. June (short for mēnsis Iūnius)

Second-declension noun.

Case	Singular	Plural
Nominative	Iūnius	Iūniī
Genitive	Iūniī Iūnī1	Iūniōrum
Dative	Iūniō	Iūniīs
Accusative	Iūnium	Iūniōs
Ablative	Iūniō	Iūniīs
Vocative	Iūnī	Iūniī

¹Found in older Latin (until the Augustan Age).

Unsorted borrowings

These borrowings are ultimately but perhaps not directly from Latin. They are organized into geographical and language family groups, not by etymology.

• Roman calendar on Wikipedia.Wikipedia