pleth·o·ra 
/ˈplɛθərə/ noun
/ˈplɛθərə/ noun [singular] formal : a very large amount or number : an amount that is much greater than what is necessary
▪ A plethora of books have been written on the subject. ▪ a plethora of information
▪ A plethora of books have been written on the subject. ▪ a plethora of information
