pentecostalism

The term originates from the Greek pentēkostē (hēmera), meaning "the fiftieth day," referring to the Jewish festival of Shavuot occurring fifty days after Passover. In Christian tradition, this day commemorates the descent of the Holy Spirit upon the apostles, an event described in the New Testament's Acts of the Apostles. The adjective "Pentecostal" was formed in the 19th century to describe phenomena or churches that emphasized this specific biblical experience. The abstract noun "Pentecostalism" subsequently emerged in the early 20th century to label the distinct Christian theological movement and its associated practices centered on the direct, personal experience of the Holy Spirit's power.

Structure: pentecost (proper noun) + al (adjective suffix) + ism (noun suffix) pentecost: From Greek pentēkostē (hēmera), meaning "fiftieth (day)". Functions as the core proper noun referencing the specific biblical festival. al: A Latin-derived suffix forming adjectives meaning "of or pertaining to". In this word, it forms the adjective "Pentecostal". ism: A Greek-derived suffix forming nouns denoting a system, principle, or movement. Here, it denotes the system of beliefs and practices.