LATIN DICTIONARYLexicon Latīnum
adjectivefirst/second-declension adjective

ratus1

ratus (feminine rata, neuter ratum)
Classical[ˈra.tʊs]Ecclesiastical[ˈraː.tus]

Meaning

  1. adjectiveestablished, authoritative
  2. adjectivefixed, certain

Latīnē defined in Latin in our graded readers

Declension

singular
formmasculinefeminineneuter
nominativeratusrataratum
genitiveratīrataeratī
dativeratōrataeratō
accusativeratumratamratum
ablativeratōratāratō
vocativeraterataratum
plural
formmasculinefeminineneuter
nominativeratīrataerata
genitiveratōrumratārumratōrum
dativeratīsratīsratīs
accusativeratōsratāsrata
ablativeratīsratīsratīs
vocativeratīrataerata

Phrases from Meissner's Latin Phrase-Book

legem ratam esse iubere
to declare a law valid.
lex rata est (opp. irrita)
a law is valid.

rătus, a, um, Part. and P. a., v. reor
I. fin.

Origins

Perfect active (or passive, with active meaning) participle of reor (“to think, to consider”).

Descendants
  • Englishrate
  • Englishratify
  • Italianrato
  • Portugueserazão
  • Portugueseratificar
verbfirst/second-declension participle
ratus2
ratus (feminine rata, neuter ratum)
Classical[ˈra.tʊs]Ecclesiastical[ˈraː.tus]

Meaning

  1. participleconsidered, having considered.
  2. participlejudged, having judged

Origins

Perfect active (or passive, with active meaning) participle of reor (“to think, to consider”).

Quick answers

What does ratus mean in Latin?
ratus, a adjective, means “established, authoritative; fixed, certain”.
How do you pronounce ratus?
In classical Latin, [ˈra.tʊs]; in ecclesiastical (church) Latin, [ˈraː.tus].