prefix:
meaning:
The prefix in the word "disclose" is the morpheme "dis".
From the linguistic point of view, affixes (prefix and suffix) are morphemes attached to the root in order to change or add meaning. Prefixes are fronted whereas suffixes are attached to the end of the root. Affixes always encode meaning, in this case the prefix "dis" means "not". Other examples of prefix "dis" could be "disqualify, dislike, disagree, disappear", etc.
Calphurnia to bear a son.
Cicero to become a Roman senator.
Caesar to accept a crown
b. to create images.
c. to enhance a style.
d. to express an attitude.