Etymology

Gougu theorem

Today it means: Pythagorean theorem Full definition →

Chinese 勾股定理
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The story

  1. Chinese · borrowed from勾股定理
  2. English todayGougu theorem

Borrowed from Chinese 勾股定理 (gōugǔ dìnglǐ), literally the longer and shorter legs of a right triangle theorem.

Etymology from Wiktionary, CC BY-SA 4.0.