-atus

See also: atus and -átus

Latin

Etymology 1

From Proto-Italic *-ātos, from Proto-Indo-European *-eh₂tos. A "pseudo-participle" possibly related to -tus, though similar formations in other Indo-European languages show that it was distinct from it already in Indo-European times. Compare -ītus, -ūtus.

Cognate to Proto-Slavic *-atъ, Proto-Germanic *-ōdaz (English -ed (“having”)).

Suffix

-ātus (feminine -āta, neuter -ātum); first/second-declension suffix

-ed. Used to form adjectives from nouns indicating the possession of a thing or feature.
‎barba (“beard”) + ‎-ātus → ‎barbātus (“bearded, having a beard”)

‎caetra (“a type of short Spanish shield”) + ‎-ātus → ‎caetrātus (“armed with a caetra”)

‎toga (“toga”) + ‎-ātus → ‎togātus (“wearing a toga, clad in a toga”)
Used to form adjectives from other adjectives, especially color names, with the sense "wearing [adjective](-colored) clothes".
‎albus (“white”) + ‎-ātus → ‎albātus (“clothed in white”)

‎āter (“black”) + ‎-ātus → ‎atrātus (“clothed in black”)

‎sordidus (“unclean, sordid”) + ‎-ātus → ‎sordidātus (“in dirty clothes, shabbily dressed”)
-like, -ate. Used to form adjectives from nouns indicating a resemblance or likeness to the noun.
‎rēticulum (“small net”) + ‎-ātus → ‎rēticulātus (“reticulated, net-like”)

‎vir (“man”) + ‎-ātus → ‎virātus (“manly, manful”)

Declension

First/second-declension adjective.

	masculine	feminine	neuter	masculine	feminine	neuter
	singular			plural
nominative	-ātus	-āta	-ātum	-ātī	-ātae	-āta
genitive	-ātī	-ātae	-ātī	-ātōrum	-ātārum	-ātōrum
dative	-ātō	-ātae	-ātō	-ātīs
accusative	-ātum	-ātam	-ātum	-ātōs	-ātās	-āta
ablative	-ātō	-ātā	-ātō	-ātīs
vocative	-āte	-āta	-ātum	-ātī	-ātae	-āta

Derived terms

Latin terms suffixed with -atus (adjective)

Descendants

Asturian: -áu, -ada
Catalan: -at, -ada
→ English: -ate, -ade
Old French: -et
- French: -é
Friulian: -ât, -ade
Galician: -ado
→ German: -at
Italian: -ato
- → French: -ade (from Italian or Occitan)
Occitan: -at
- → French: -ade (from Italian or Occitan)
Portuguese: -ado, -ada
Romanian: -at, -ată
Spanish: -ado, -ada
Sicilian: -atu, -ata
→ Portuguese: -ato
→ Spanish: -ato

Etymology 2

Formed by rebracketing of action nouns in -tus, -tūs formed from the perfect passive participle of first conjugation verbs, such as mercātus (mercor + -tus) or pecūlātus (peculor + -tus), where -ā- is actually part of the stem; from Proto-Italic *-tus, from Proto-Indo-European *-tus (suffix deriving action nouns from verb roots).

Suffix

-ātus m

Form of -tus appended to nouns
‎triumvir + ‎-ātus → ‎triumvirātus

‎episcopus + ‎-ātus → ‎episcopātus

‎apostolus + ‎-ātus → ‎apostolātus

Declension

Fourth-declension noun.

	singular	plural
nominative	-ātus	-ātūs
genitive	-ātūs	-ātuum
dative	-ātuī	-ātibus
accusative	-ātum	-ātūs
ablative	-ātū	-ātibus
vocative	-ātus	-ātūs

Derived terms

Descendants

→ French: -at (learned)
→ Norwegian Bokmål: -at
Italian: -ato
Portuguese: -ado