What is a prefix for dehydrate?

There isn't a common single-word prefix specifically for "dehydrate." However, depending on the context, you could use these prefixes:

* De-: This is the most direct prefix, emphasizing the removal of water. For example, "dehydration" is the process of losing water.

* Dis-: This prefix can imply a separation or removal, similar to "de-". For example, "dishydration" could be used to emphasize the separation of water from a substance.

* Hypo-: This prefix indicates "below" or "deficient." "Hypohydration" refers to a state of having less than the optimal amount of water in the body.

It's important to note that while these prefixes might be used, they aren't standard usage. "Dehydration" is the most common and widely accepted term.