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These terms were devised in the late 20th century analysis of Classical Japanese, originally, for the difference between -(さ)す (glossed as externally instigated) and -(ら)る (glossed as internally instigated). This exoactive vs endoactive reflects 18th century Japanese use of 他動詞 vs 自動詞 (tadoushi vs jidoushi). In more traditional Western-orientated linguistic ...


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On p. 43 of ABC Etymological Dictionary of Old Chinese By Axel Schuessler we have the following introduction: which is later expound on: On p. 44 we find the exact example that you are asking about: It also comes with an explanation: There is a little explanation also here: [...] endoactive (introvert) verbs also can be tr. like mai 'to buy (something)',...


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in ancient china, the right angle triangle is named "勾股形". the 國語辭典 has this entry: 勾股, explained as 我國古代稱直角三角形為「勾股形」。其直角旁的短邊稱為「勾」,長邊稱為「股」,對著直角的邊稱為「弦」。 the short side near the right angle is called "勾", the longer side near the right angle is called "股"; and the side opposite the right angle is called "弦". people used something like "勾股", "勾股之法" to ...


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