Why did Thai Language borrow Middle Chinese for numerals 2-4 (song, sam si), 7-10 (chet, pet, kao, sip), 20 (yi sip) & -1 (et, in higher numerals) whereas numerals 5 (ha < *lŋa / *sŋa) & 6 (hok < *krok ) seem to be Old Chinese loanwords?
Why did Thai Language borrow Middle Chinese for numerals 2-4 (song, sam, si), 7-10 (chet, pet, kao, sip), 20 (yi sip) & -1 (et, in higher numerals) whereas numerals 5 (ha < *lŋa / *sŋa) & 6 (hok < *krok ) seem to be Old Chinese loanwords?
Cooling Tower Energy Trade-off Optimization:
Fans vs. Pump
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為甚麼泰語的 2（song 雙）、3（sam 三）、4（si 四）、7（chet 七）、8（pet 八）、9（kao 九）、10（sip 十）、-1（et 一）、20（yi sip 二十）、萬（mɯ̀ːn）都借自中古漢語（閩／粵方言）；而 5（ha < *lŋa / *sŋa ）和 6 (hok < *krok) 則像是借自上古漢語？
Why did Thai Language borrow Middle Chinese for numerals 2-4 (song, Sam si), 7-10 (chet, pet, kao, sip), 20 (yi sip) & -1 (et, in higher numerals) whereas numerals 5 (ha < *lŋa / *sŋa) & 6 (hok < *krok) seem to be Old Chinese loanwords?