[tasogare]

Reading is good, understanding the implications is better. Standard Mandarin is newer than the period at which Canada would appear as a loanword in Chinese, so of course it is not drawn from that language. But that doesn't mean it is Cantonese either. Moreover, I wrote Mandarin (a Chinese languages with a variety of dialects), not Standard Mandarin (the language taught at school).

In particular, for the Beijing case, South Mandarin is involved: https://en.wikipedia.org/wiki/Chinese_postal_romanization#Ma....