Please can come with different sorts of prefixes, such as "un", "out", "over", "self" and "well".
Examples: "This was an unpleasant surprise". In this sentence we have the prefix "un", meaning that this wasn't a pleasant surprise, that it was a negative surprise.
"You really shouldn't overplease your daughter". In this sentence the prefix "over" shows that not only do the parents please their daughter, but they also please her in a high degree.