LATIN DICTIONARYLexicon Latīnum
nounthird declension

iūs vītae necisque

iūs vītae necisque n sg (genitive iūris vītae necisque)
Classical[ˈjuːs ˈwiː.tae̯ nɛˈkɪs.kʷɛ]Ecclesiastical[ˈjus ˈviː.te neˈt͡ʃis.kʷe]

Meaning

  1. the power of life and death (in legal system of Ancient Rome)
    In Roman law, the Latin expression "Ius vitae necisque" (the power of life and death) indicated one of the powers contained in the head of the household (patria potestas), who enjoyed the right of life and death over all those subject to his power (wife, children, slaves, etc.).

Declension

declension
formsingularplural
nominativeiūs vītae necisque—
genitiveiūris vītae necisque—
dativeiūrī vītae necisque—
accusativeiūs vītae necisque—
ablativeiūre vītae necisque—
vocativeiūs vītae necisque—

Quick answers

What does iūs vītae necisque mean in Latin?
iūs vītae necisque, a noun, means “the power of life and death (in legal system of Ancient Rome)”.
What is the genitive of iūs vītae necisque?
The genitive singular is iūris vītae necisque. iūs vītae necisque is third declension.
How do you pronounce iūs vītae necisque?
In classical Latin, [ˈjuːs ˈwiː.tae̯ nɛˈkɪs.kʷɛ]; in ecclesiastical (church) Latin, [ˈjus ˈviː.te neˈt͡ʃis.kʷe].