صَبْر
ṣabr
patience; endurance
صـبـر
Most Arabic words are built from a small set of root letters — knowing the root helps you recognize related words across the dictionary.
وَاصْبِرْ وَمَا صَبْرُكَ إِلَّا بِاللَّهِ
And be patient — your patience is but from Allah (Quran 16:127)