Here are some words with the root "dic-":
* Dictate: to say something for someone else to write down
* Dictation: the act of speaking words for someone else to write down
* Diction: the choice and arrangement of words
* Dictatorial: like a dictator, ruling with absolute power
* Contradict: to say the opposite of something
* Benediction: a blessing
* Malediction: a curse
* Verdict: a judgment or decision
These words illustrate how the root "dic-" relates to speaking, saying, and expressing oneself.