What does the root word aqui?

The root word "aqui" is not a stand-alone root word in English or Latin. It is likely you are thinking of a word with a similar spelling, or a word from a different language.

Here are some possibilities:

* "Aqua": This is a Latin word meaning "water". It is a root for many English words related to water, like "aquatic", "aquarium", and "aqueduct".

* "Aqui": This is a Spanish word meaning "here". It is not a root word, but rather a complete word.

Please provide more context or the full word you are asking about. This will help me give you a more accurate answer.