naulum — Lewis & Short
naulum (naulŏn), i, n., = nau=lon,
I passage-money, fare:
perdere naulon,Juv. 8, 97:
in naulis navium,Dig. 30, 39, 1:
ut naulum exsolvatur,ib. 20, 4, 6; Vulg. Jonae, 1, 3.