How did Bombay get is name?

Bombay is derived from the Portuguese name "Bombaim", which was given to the city by the Portuguese in the 16th century. The name "Bombaim" is a combination of the Portuguese words "bom" (good) and "baía" (bay), referring to the city's location on a natural harbor. The name Bombay was officially changed to Mumbai in 1995, after the city's original Marathi name, Mumba (meaning "mother").