let's start with the real ones -- these leap out at me:

cerumen, looby, loco-foco, modesty(!?), temulent, afflatus

that's only six(6), and I'd guess about half should be real, so that leaves maybe 16.

yes, WW, cerumen is ear wax. zarf is a word, but I doubt zurf. shroff(7) is real; it means moneychanger. let's research infangtheof; Mrs. Byrne has infangthief(8?) (the right of a feudal lord to punish thieves), and that's too close.

edit: infangthief
Forms: 1–2 infangenţeof, 3 infangen(e)-, infangethef, 4–6 infangthef, -e, (6 infanthef, infanketheiff), 7 infangtheefe, -theif(e), 9 Hist. infangthief. Also erron. 6–7 infang-, 8 infangentheft.