from
Bouvier's Law Dictionary, Revised 6th Ed (1856)
INFORTIATUM, civil law. The second part of the Digest or Pandects of
Justinian, is called infortiatum: see Digest. This part, which commences
with the third title of the twenty-fourth book, and ends with the thirty-
eighth book, was thus called because it was the middle part, which, it was
said, was supported and fortified by the two others. Some have supposed that
this name was given to it, because it treats of successions, substitutions,
and other important matters, and being, more used than the others, produced
greater fees to the lawyers.