-is

Latin

Etymology 1

From Proto-Indo-European *-is.

Pronunciation

• (Classical) IPA^(key): /is/, [ɪs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /is/, [is]

Suffix

-is (neuter -e); third-declension two-termination suffix

1. suffixed to the root of nouns in composition, forms adjectives of the third declension

   bi- + annus + -is → biennis

   bi- + palmus + -is → bipalmis

   ē- + norma + -is → ēnormis

   in- + somnus + -is → insomnis

   pro- + clīvus + -is → proclīvis

   tri- + annus + -is → triennis

Declension

Third-declension two-termination adjective.

Number	Singular			Plural
Case / Gender	Masc./Fem.	Neuter		Masc./Fem.	Neuter
Nominative	-is	-e		-ēs	-ia
Genitive	-is			-ium
Dative	-ī			-ibus
Accusative	-em	-e		-ēs -īs	-ia
Ablative	-ī			-ibus
Vocative	-is	-e		-ēs	-ia

Derived terms

Latin terms suffixed with -is

Descendants

• → Swedish: -is (learned)
  • → Finnish: -is
  • → Norwegian Bokmål: -is
  • → Norwegian Nynorsk: -is

References

• “-is” on page 970/3 of the Oxford Latin Dictionary (1st ed., 1968–82)

Etymology 2

Declined forms of -us (suffix forming adjectives). Derived from Proto-Italic -ois.

Pronunciation

• (Classical) IPA^(key): /iːs/, [iːs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /is/, [is]

Suffix

-īs

1. dative/ablative masculine/feminine/neuter plural of -us

Etymology 3

Declined forms of -a (suffix forming masculine agent nouns).

Pronunciation

• (Classical) IPA^(key): /iːs/, [iːs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /is/, [is]

Suffix

-īs m

1. dative/ablative plural of -a

Etymology 4

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Suffix

-is

1. second-person singular present active indicative of -ō (third conjugation)

Etymology 5

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Suffix

-īs

1. (archaic) second-person singular sigmatic aorist active subjunctive of -ō (third conjugation)

Etymology 6

See the etymology of the corresponding lemma form.

Suffix

-is

1. genitive singular of -s