Word Ma'am

Now anyway, I think this thread is about the word ma'am.

>As for the ancient times when human beings had no names, I believe children just shouted to attract their parents attention. <

Yes but the number of languages in which something close to "papa" and "mama" is used is impressive. I wonder if it is because the children find those sounds easy to use or if we should see it as an argument in favor of the theory of an original unique language from which all the languages originated.

Very true, messire lavoisel. In colloquial Chinese, bàba= father, mama= mother.