What is the meaning of Greek root miss?

There isn't a Greek root "miss". It's likely you are thinking of the Greek root "mit", which means "send" or "let go".

Here are some examples of words that use the Greek root "mit":

* Emit: To send out (light, heat, sound, etc.)

* Transmit: To send from one person or place to another

* Submit: To yield to a superior force

* Commit: To pledge oneself to a certain course of action

* Admit: To acknowledge the truth of something

* Permit: To allow something to happen

It's important to remember that while the root "mit" means "send", the meaning of the word changes depending on the prefix and suffix used.