he found ... that the circumference was three times the diameter plus a quantity which was less than a seventh but more than ten seventy-oneᵗʰˢ.
Source: wiktionary
Seventy-oneth
//ˌsɛvənti ˈwʌnθ//
Synonyms for "seventy-oneth"
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.