[tekacs]

I think that your parent commenter looked up the etymology of the English word 'human', which comes from humus (earth).

I think they read the grandparent post as suggesting that the English word 'human' came from Arabic, rather than your (correct) inference that they meant the Arabic word for human.

[ars]

It's from the name of the first human "Adam", which comes from the word for earth. And I thought that was the origin of the word that means human in Arabic.

But another poster said there are multiple words for human in Arabic, so now I'm not sure.