It is possibly related to Arabic زين (zayn) meaning "beauty"; it could be from the name of a fragrant flowering tree; or it could be an Arabic form of ZENOBIA, a name borne by a pre-Islamic queen of Palmyra. Zaynab was the name of a daughter, a granddaughter, and two wives of the Prophet Muhammad.
Hamnah is a feminine name of Arabic origins. It comes from an Arabic word for a dark coloured berry. The name Hamnah is favoured by Muslim parents. In Islamic belief it was the name of the sister of one of the wives of the prophet Muhammad.