|Word root/prefix||Root Meaning||Words based on the Root|
|Dem/o||people||Democracy - government of the people
Demographic - the study of people
Epidemic - spreading among people in a region
|Di/plo||two, twice||Dichromatic - displaying two colors
Diploma - a certificate, literally "a letter folded double"
Dilemma - a situation that requires a choice between two alternatives.
|Dict||speak||Contradict - to express the opposite of
Prediction - a statement foretelling the future
Dictate - to speak out loud for another person to write down.
|Domin||master||Dominate - to be the master of
Domineering - excessively controlling
Predominate - to have more power than others
|Ego||self||Egoistic - self-centered
Alter ego - a higher aspect of oneself
Egomania - excessive preoccupation with oneself.