What is the meaning of the word "rain-maker"? How did this originate?

What is the meaning of the word "rain-maker"? How did this originate?


Solution 1:

Rain-maker or rainmaker originates from native American tribal magicians (etymonline) and has come into English language around 1775.

It is used of a professional that is great in his field (seemingly magical) or somebody believed to be able to produce rain. Especially somebody generating a great deal.

See The Free Dictionary