Here are some ways to interpret your question:
1. A prefix that sounds like another word:
* "Dis-" itself is a prefix that sounds like the word "dis", but its meaning is completely different.
* "Tele-": This prefix means "distant" and sounds very similar to the word "tell", but it has a completely different meaning.
2. A prefix that is hidden within another word:
* "Pre-" This prefix is hidden within the word "prefix" itself!
* "En-": This prefix is hidden within the word "enchant" (although it's technically part of the word "en-"*chant*).
3. A prefix that has a different meaning depending on context:
* "Pro-": This prefix can mean "for" or "before", depending on the word it's attached to. For example, "pro-choice" means "for choice", while "prologue" means "before the main part of the story".
4. A prefix that has a hidden meaning or significance:
This is more abstract, but you could argue that some prefixes have deeper meanings that are not immediately obvious. For example:
* "De-": This prefix often indicates removal or reversal, which could be seen as a form of disguise. For example, "de-construct" means to take something apart, essentially hiding its original form.
Ultimately, whether or not a prefix is "in disguise" depends on your definition and interpretation. There's no one right answer!