LATIN DICTIONARYLexicon Latīnum
proper nounfifth declension

rēspūblica Chrīstiāna

rēspūblica Chrīstiāna f sg (genitive reīpūblicae Chrīstiānae)

Meaning

  1. EcclesiasticalLatinChristendom, the Christian nations as a political community.
    caputque attollere inciperet profligata antea, & afflicta Respublica Christianaand the Christian commonwealth, so abandoned and afflicted before, began to lift up its head1552, Council of Trent, Sacrosancti Concilii Tridentini decreta et canones, Sessio XVI:
  2. EcclesiasticalLatinMedieval LatinThe Christian empire, i.e. the Byzantine Empire or the Holy Roman Empire.

Declension

declension
formsingularplural
nominativerēspūblica Chrīstiāna—
genitivereīpūblicae Chrīstiānae—
dativereīpūblicae Chrīstiānae—
accusativerempūblicam Chrīstiānam—
ablativerēpūblicā Chrīstiānā—
vocativerēspūblica Chrīstiāna—

Origins

First attested in Augustine of Hippo: "Omnium enim christianorum una respublica est" ("For there is one commonwealth of all Christians"), De opere monachorum (c. 400 CE), 23.33. In early medieval usage, used chiefly to refer to the Byzantine Empire. From c. 9th century applied to the dominion of Frankish kings and emperors in the West. Generalised to refer to the community of all Christian states in the 11th century, which became the predominant meaning from the High Middle Ages on.

Quick answers

What does rēspūblica Chrīstiāna mean in Latin?
rēspūblica Chrīstiāna, a proper noun, means “Christendom, the Christian nations as a political community.; The Christian empire, i.e. the Byzantine Empire or the Holy Roman Empire.”.
What is the genitive of rēspūblica Chrīstiāna?
The genitive singular is reīpūblicae Chrīstiānae. rēspūblica Chrīstiāna is fifth declension.