Julian. in Misopogon, p. 340. Leucetia, or Lutetia, was the ancient name of the city which, according to the fashion of the fourth century, assumed the territorial appellation of Parisii. Julian. in Misopogon, p. 340. Leucetia, or Lutetia, was the ancient name of the city which, according to the fashion of the fourth century, assumed the territorial appellation of Parisii.