> ソ comes from the Chinese character 會
ソ comes from 曾 ("once, at one point") not 會. Yes, those are different characters.
ソ comes from 曾 ("once, at one point") not 會. Yes, those are different characters.
The trick is that 曾 is sometimes written with 八 as its "roof", which makes it look like 會, and sometimes with 丷, depending on your font. (Similar to 兑 and 兌 in the article)