paganism

The distant root lies in Latin pagus, a word for a rural district or bounded countryside. From it came paganus, first meaning a country-dweller or civilian in the Roman world. In the first and second centuries CE, this was ordinary social language, not a religious label. The word belonged to roads, farms, and local belonging.

By the fourth century CE, Christian Latin writers had given paganus a new use. In a church that spoke of itself in disciplined, almost military terms, the paganus was the outsider, the civilian, or the one beyond the Christian body. That shift is visible in late Roman texts from the 300s and 400s. A word of place had become a word of faith.

Medieval Latin formed paganismus, the abstract noun for pagan religion or pagan practice. This noun traveled through ecclesiastical writing and then through French and English channels. By Middle English, forms such as paganisme were in use for non-Christian religion, especially in polemical settings. The meaning had narrowed and hardened.

Modern English paganism still carries that history, though its use has widened again. It can name the pre-Christian religions of Greece, Rome, or northern Europe, and it can also refer to modern Pagan movements. The older rural sense is gone, but the memory of the countryside remains inside the form. The word has moved from field to creed.