Plenty means more than enough or in sufficient quantity, while many means a large number. One can have many but not plenty, (they say)! Both being of a large amount without giving a definite number.
One starts with a 'P'
The other with an 'M'
You have quite the sense of humor/humor Blue Jay! : )
Many means a lot of, and plenty means more than enough. I would say plenty means more than many.
I would like plenty of cake, as many days as possible.
I hope that answers your question.
LOL! I'm in!