oppidan

From the absence of his name on the college lists, it may be inferred that he was an Oppidan.

The convivial entertainments of Check nights and Oppidan dinners had already become institutions of a past age.

On the other hand while 'meridian' and 'quartan' are French, 'publican', 'veteran', and 'oppidan' are Latin.

Oppidan, op′i-dan, n. at Eton, a student who is not a foundationer or colleger.