Yes, in Arabic it is so to distinguish family trees and bloodlines, for example if a nursing mother is ill, her baby might breastfeeding from another women, but

Yes, in Arabic it is so to distinguish family trees and bloodlines, for example if a nursing mother is ill, her baby might breastfeeding from another women, but the offsprings of both become all brothers and sister due to that, they are, as such, not allowed to marry.