I usとは意味・読み方・使い方

出典:『Wiktionary』 (2026/02/02 03:37 UTC 版)

発音

(Classical Latin) IPA: [i.ʊs]
(modern Italianate Ecclesiastical) IPA: [i.us] (stressed on the antepenult)

語源 1

From Old Latin -ios, from Proto-Italic *-i(j)os, from Proto-Indo-European *-yós. Cognate with Ancient Greek -ῐος (-ĭos).

接尾辞

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

forming adjectives from nouns
found as an ending of most Classical Latin 'nomina gentilicia' (family names or surnames, shared by the members of a gens)
(New Latin) suffix for Latinizing surnames

使用する際の注意点

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”)

In taxonomics, out of analogy with ancient Roman nomina gentilicia, this suffix is added to surnames ending in a consonant other than the ending -er and, sometimes, replacing a mute final -e.

Examples:

‎French Descartes + ‎-ius → ‎Cartesius

‎German Leibniz + ‎-ius → ‎Leibnitius

‎German Schmalz + ‎-ius → ‎Smalcius

‎English Shakespeare + ‎-ius → ‎Shakespeārius

語形変化

First/second-declension adjective.

	masculine	feminine	neuter	masculine	feminine	neuter
	singular			plural
nominative	-ius	-ia	-ium	-iī	-iae	-ia
genitive	-iī	-iae	-iī	-iōrum	-iārum	-iōrum
dative	-iō	-iae	-iō	-iīs
accusative	-ium	-iam	-ium	-iōs	-iās	-ia
ablative	-iō	-iā	-iō	-iīs
vocative	-ie	-ia	-ium	-iī	-iae	-ia

同意語

-āceus
-āneus
-ticus

派生語

-ium

Latin terms suffixed with -ius

Abbius

abductorius

abstemius

acanthopodius

accessorius

acidalius

Actorius

Acutius

administratorius

adulatorius

aequicrurius

ainz

ainçois

Albius

aleatorius

alluvius

Apollonius

Aquilius

aquilonius

Archimedius

Arruntius

Asellius

Asinius

Atrius

auditorius

Aurelius

Ausonius

Barbatius

benemorius

Berytius

bivius

Blaesius

Bubastius

Buchenavius

Calidius

Calventius

Calydonius

Caninius

Canius

cannabius

Cassius

Centenius

Chmielnicius

circulatorius

Cluentius

Comatius

concubius

Consentius

Constantius

contemplatorius

Corinthius

Cynthius

Cyprius

Danaeius

Davidius

declamatorius

dictatorius

Domitius

dupondius

egregius

Eligius

Ephesius

Eutropius

eximius

Faberius

Fabius

Faltonius

Fidustius

Firmius

flaminius

Flavius

Fullonius

Furnius

Gallius

Gaudentius

Geminius

Gildasius

Glycerius

Goesius

Gratius

Helvius

Herminius

Hesiodius

Hesperius

Hevelius

Hirtius

holitorius

homerius

Honorius

hordeius

hortatorius

Hyrieus

Ialysius

-icius

illusorius

inductorius

inferius

interdictorius

introductorius

Ionius

Iovius

isicium

Iunius

-ivius

Junius

Lacerius

Lactantius

Laecanius

Laevius

Larcius

Latinius

Laurentius

Lelegeius

levatorius

Licinius

lixivius

Lockius

ludius

Luscius

magnesius

Martius

Mauricius

mercatorius

meretricius

Mustius

Mutilius

Naevius

naevius

nefarius

Nereius

Novius

noxius

nugatorius

Numitorius

nuncupatorius

nuntiatorius

nutricius

obnoxius

obstetricius

Obultronius

Octavius

octavius

Octobrius

olitorius

Olympius

Opimius

pacatorius

Pacilius

Pacuvius

Paeonius

papyrius

Parrhasius

pastorius

patrius

peloponnesius

Petilius

Phineius

phoenicius

piscatorius

Pistorius

Plancius

Plautius

plebeius

Pontia

pontificius

poscinummius

posterius

praeconius

praedicatorius

praeparatorius

pransorius

primicerius

Procopius

propitiatorius

propius

provocatorius

Prudentius

pugnatorius

pyrius

Quartinius

Quinctilius

Quirinius

regius

Reichenbachius

Rhoeteius

risorius

Rubellius

Rubrius

Rufius

Rutilius

Sabellius

Sabinius

Sacratorius

Saevius

Salii

satagius

Saturius

Saturnius

Scaevius

scironius

派生した語

参照

^ Etymology: The Latinization of Modern Surnames for Species Names (July 29th), 29.07.2014, https://iam-discite.tumblr.com/post/93215833830/etymology-the-latinization-of-modern-surnames-for

“-ius” on page 986/1 of the Oxford Latin Dictionary (1st ed., 1968–82)

語源 2

See -ior (suffix forming adjectives’ comparative degrees). Doublet of -ius (forming adverbs).

接尾辞

-ius

nominative/accusative/vocative neuter singular of -ior

語源 3

From Proto-Italic *-jos. Doublet of -ius (adjectival ending).

接尾辞

-ius (not comparable)

forms comparative adverbs

語源 4

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

接尾辞

-ius

the regular genitive singular suffix for most pronouns

quī: cuius

hic: huius

ūnus: ūnī̆us

alter: alterī̆us (alongside alterī, alterae)

使用する際の注意点

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.

[1] Etymology: The Latinization of Modern Surnames for Species Names (July 29th), 29.07.2014, https://iam-discite.tumblr.com/post/93215833830/etymology-the-latinization-of-modern-surnames-for


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I usとは意味・読み方・使い方

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-ius

発音

語源 1

接尾辞

使用する際の注意点

語形変化

同意語

派生語

派生した語

参照

語源 2

接尾辞

語源 3

接尾辞

語源 4

接尾辞

使用する際の注意点

Ius

名詞

Weblio例文辞書での「I us」に類似した例文

ius

「I us」の部分一致の例文検索結果

「I us」のお隣キーワード

I usとは 意味・読み方・使い方

機械工学英和和英辞典での「I us」の意味

IUS (inertial upper stage)

「I us」の部分一致の例文検索結果

JST科学技術用語日英対訳辞書での「I us」の意味

IUS

Weblio英和対訳辞書での「I us」の意味

IUS

Wiktionary英語版での「I us」の意味

-ius

発音

語源 1

接尾辞

使用する際の注意点

語形変化

同意語

派生語

派生した語

参照

語源 2

接尾辞

語源 3

接尾辞

語源 4

接尾辞

使用する際の注意点

Ius

名詞

Weblio例文辞書での「I us」に類似した例文

ius

「I us」の部分一致の例文検索結果

「I us」のお隣キーワード

I usとは意味・読み方・使い方