Its origin

Bollywood is formally referred to as Hindi cinema,[6] though frequent use of poetic Urdu words is fairly common. There has been a growing presence of Indian English in dialogue and songs as well. It is not uncommon to see films that feature dialogue with English words and phrases, or even whole sentences. The name "Bollywood" is a portmanteau of Bombay (the former name for Mumbai) and Hollywood, the center of the American film industry. However, unlike Hollywood, Bollywood does not exist as a physical place. Though some deplore the name, arguing that it makes the industry look like a poor cousin to Hollywood, it has its own entry in the Oxford English Dictionary.