A more thorough explanation:

Definition: Do, dico, addico are Latin words that mean "I give," "I say," and "I adjudge," respectively. These words were used by the Roman praetor on certain days to exercise his jurisdiction. Do refers to granting actions, exceptions, and appointing judges; dico refers to pronouncing judgments; and addico refers to adjudicating controverted property.

Example: On a dies fasti, the Roman praetor would say "do" to grant actions, exceptions, and appoint judges. He would say "dico" to pronounce judgments and "addico" to adjudicate controverted property.

This example illustrates how the words "do," "dico," and "addico" were used by the Roman praetor to exercise his jurisdiction on certain days.