from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun UK a
prefectin some public schools
Sorry, no etymologies found.
[Footnote 5: A praepostor is a monitor, a scholar appointed to oversee other scholars.]
I fear that this was in some measure owing to the fact, that Tom could probably have thrashed any boy in the room except the praepostor;  at any rate, every boy knew that he would try upon very slight provocation, and didn't choose to run the risk of a hard fight because Tom Brown had taken a fancy to say his prayers.
At one of the most famous public schools, a praepostor, or monitor, or sixth-form boy having authority, heard a pistol-shot in the room above his own.
At home things went on rather better; the Ellen and Mother Cross rows sank slowly down upon the horizon, and even at home he had quieter times now that he had become a praepostor.