What does Yusuf mean?
The Arabic form of the prophet Joseph (Yusuf), of Hebrew origin (Yosef), traditionally understood as 'he will add' or 'God shall increase'. The Arabic form itself carries no independent Arabic root meaning; Surah Yusuf is named for him. Also spelled Yousuf, Yousef.
What does Musa mean?
The Arabic form of the prophet Moses (Musa), a name of Egyptian/Hebrew origin (folk-etymologized in Hebrew as 'drawn out of the water'). The Arabic form carries no independent Arabic root meaning; Musa is among the most frequently named prophets in the Quran.