Interesting, it was just a foreign word in my childhood. Now I see it is related to "тетраэдр" (τετρά-εδρον) and Tetra Pak. Possible origin: * four-leaved pamp

Interesting, it was just a foreign word in my childhood. Now I see it is related to "тетраэдр" (τετρά-εδρον) and Tetra Pak. Possible origin: * four-leaved pamphlet [1] * four pages of a wax tablet [2] * fourth of a standard paper size [3] [1] https://en.wiktionary.org/wiki/%CF%84%CE%B5%CF%84%CF%81%CE%AC%CF%82 https://en.wiktionary.org/wiki/%CF%84%CE%B5%CF%84%CF%81%CE%A... [2] https://ru.wikipedia.org/wiki/%D0%A2%D0%B5%D1%82%D1%80%D0%B0%D0%B4%D1%8C https://ru.wikipedia.org/wiki/%D0%A2%D0%B5%D1%82%D1%80%D0%B0... [3] https://lexicography.online/etymology/%D1%82/%D1%82%D0%B5%D1%82%D1%80%D0%B0%D0%B4%D1%8C https://lexicography.online/etymology/%D1%82/%D1%82%D0%B5%D1...