See also: ius, Ius, and IUs

LatinEdit

PronunciationEdit

Etymology 1Edit

From Old Latin -ios, from Proto-Italic *-jos, from Proto-Indo-European *-yós.

SuffixEdit

-ius (feminine -ia, neuter -ium); first/second-declension suffix

  1. forming adjectives from nouns
DeclensionEdit

First/second-declension adjective.

Number Singular Plural
Case / Gender Masculine Feminine Neuter Masculine Feminine Neuter
Nominative -ius -ia -ium -iī -iae -ia
Genitive -iī -iae -iī -iōrum -iārum -iōrum
Dative -iō -iō -iīs
Accusative -ium -iam -ium -iōs -iās -ia
Ablative -iō -iā -iō -iīs
Vocative -ie -ia -ium -iī -iae -ia
Usage notesEdit

The suffix -ius is added to a noun to form an adjective indicating "made of" or "belonging to" that noun.

Examples:
pater (father) + ‎-ius → ‎patrius (paternal)
rēx (king, ruler) + ‎-ius → ‎rēgius (kingly, royal)
uxor (wife) + ‎-ius → ‎uxōrius (uxorious)
papȳrus (papyrus) + ‎-ius → ‎papȳrius (made of papyrus)
Derived termsEdit
SynonymsEdit

ReferencesEdit

Etymology 2Edit

See -ior (suffix forming adjectives’ comparative degrees).

SuffixEdit

-ius

  1. nominative neuter singular of -ior
  2. accusative neuter singular of -ior
  3. vocative neuter singular of -ior

Etymology 3Edit

See (suffix forming adverbs).

SuffixEdit

-ius

  1. comparative degree of

Etymology 4Edit

From Proto-Italic *-osjos, itself from Proto-Indo-European *-ósyo (genitive case suffix) secondarily marked with the genitive *-s.

SuffixEdit

-ius

  1. the regular genitive singular suffix for most pronouns
    quī, cuius
    hic, huius
    ūnus, ūnī̆us
    alter, alterī̆us (alongside alterī, alterae)
Usage notesEdit

Like 3d- and 4th-declension, and unlike 1st- and 2nd-declension forms, has one form for all genders. A gendered adjective option also exists for cuius.