We say suprabhaatam (सुप्रभातम्) in Sanskrit in order to say 'good morning'. Namaskaaraha (नमस्कारः) and namaste (नमस्ते) are very popular words in Sanskrit. They are very common spoken greetings. They broadly mean, 'the divinity in me bow to the divinity in you'. Namaste is often used to greet while people meet or depart, during any time of the day.