A historical term referring to an ancient Roman coin or a soldier who carried such a coin, or relating to a hundred-year period.
From Latin 'centenionalis,' derived from 'centum' (hundred) + '-onalis' (relating to). This is an extremely archaic Latin term with unclear modern English usage.
Roman numismatists still debate what 'centenionalis' coins actually were—they might be a denomination worth 100 denarii, or possibly a coin minted for a centennial celebration, but the true answer remains one of archaeology's unsolved puzzles.
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