The English meaning of the Latin word 'civitas' is citizen. In ancient, classical Latin, the word's pronounced KEE-wee-tahs. In liturgical Latin, it's pronounced KEE-vee-tahs.
Tempus is a neuter noun of the third declension. Its genitive is temporis.The complete declension is:Singularnom./voc. tempusgen. temporisdat. temporīacc. temporemabl. temporePluralnom./voc....