What does the root word cest mean?

The root word "cest" is not a stand-alone root word in English. It is likely you are thinking of a different word or are missing a part of it.

Here are some possibilities:

* "Cest" might be a shortened form of the French word "c'est" which means "it is" or "that is".

* You may be thinking of "cestus" which is a word from Greek mythology referring to a type of boxing glove.

If you can provide more context about where you saw "cest," I can help you identify the correct word and its meaning.