n. 1. One next in order after the sixty-ninth. [ 1913 Webster ]
2. The quotient of a unit divided by seventy; one of seventy equal parts or fractions. [ 1913 Webster ]
a. [ AS. hund-seofontigoða. ] 1. Next in order after the sixty-ninth; as, a man in the seventieth year of his age. [ 1913 Webster ]
2. Constituting or being one of seventy equal parts. [ 1913 Webster ]