Moolah refers to money and is again a word we borrowed from the wider world due to colonisation and the military occupation of other countries. Go to Fiji and tell them there is known origin of moolah. We have imported many words over time, pyjamas, bungalows etc.
I'm not interested in your links, my BIL is an Arab and he tells me it doesn't just mean daughter, it can be used for daughter or a young woman. As a patronym it denotes daughter of. British soldiers in Egypt started using the word and it came into use in England. In the area I grew up in it was not used in a derogatory way, FannyCornforth seems to have had a similar experience. I don't need a link to tell me how language is used in the area I come from.