Pervigilium Omnium Sanctorum

== Latin == === Etymology === Equivalent to pervigilium (“vigil”) + omnium (“all”, gen. pl.) + sānctōrum (“saints”, gen. pl.) === Pronunciation === (Classical Latin) IPA(key): [pɛr.wɪˈɡɪ.li.ũː ˈɔm.ni.ũː saːŋkˈtoː.rũː] (modern Italianate Ecclesiastical) IPA(key): [per.viˈd͡ʒiː.li.um ˈɔm.ni.um saŋkˈtɔː.rum] === Noun === Pervigilium Omnium Sānctōrum n sg (genitive Pervigiliī Omnium Sānctōrum or Pervigilī Omnium Sānctōrum); second declension (Christianity) Halloween ==== Declension ==== Second-declension noun (neuter) with an indeclinable portion, singular only. 1Found in older Latin (until the Augustan Age).