The song was written for the musical "Paint your Wagon". These lyrics are actually a bit off. Regardless, the original words were written by Alan J. Lerner. Mariah Carey's parents named her after hearing this song. And actually it is not Mariah. It is spelled Maria originally. The original pronunciation was mar-eye-ahh, back in 1951 when the song was written. It was later when the pronunciation changed to the mar-eee-ahh, as we now know it. Thus the h added to miss Carey's name.