A more thorough explanation:

Term: Fragmenta
Definition: Fragmenta is a Latin word that means "fragments". In Roman law, it refers to passages taken from the writings of Roman jurists and collected in Justinian's Digest. These passages are abbreviated as Fr. or Ff.
Examples: One example of fragmenta is a passage from the writings of the Roman jurist Ulpian, which states "What belongs to the state cannot be sold". Another example is a passage from the jurist Paulus, which says "No one can transfer to another a greater right than he himself has". These passages were included in Justinian's Digest as part of the Roman legal system.
Explanation: The examples illustrate how fragmenta are passages taken from the writings of Roman jurists and compiled in Justinian's Digest. These passages were used as part of the Roman legal system to help judges make decisions in court cases.