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"The commander of a centuria or company of infantry, varying in number with the legion. The century was a military division, corresponding to the civil one curia; the centurio of the one answered to the curio of the other. From analogy we are led to conclude that the century originally consisted of thirty men. In later times the legion was composed of thirty maniples, or sixty centuries. As its strength varied from about three to six thousand, the numbers of a century would vary in proportion from about fifty to a hundred." — Smith, 1873

Centurio

"The commander of a centuria or company of infantry, varying in number with the legion. The century…