What prefix would you use for the word rest?

There isn't a common, single prefix that directly modifies the word "rest" to create a new word with a distinct meaning.

However, we can use prefixes to create related words or phrases:

* Re-: This prefix means "again" or "back" and can be used to create words like "restored" (to bring back to a former state) or "re-rest" (to rest again).

* Un-: This prefix means "not" and can be used to create words like "unrest" (a state of agitation or disturbance) or "unresting" (not resting).

* Pre-: This prefix means "before" and can be used to create phrases like "pre-rest" (before resting).

Ultimately, the specific prefix you use will depend on the specific meaning you want to convey.