Here's a new one that, despite 'trophy' being a common English word, still qualifies under rule 8:
This is also the first one using the Greek-derived negative prefix a- that I've allowed onto my list.
Rule 5 disqualifies words that are primarily technical or medical, but I am inclined towards allowing
on the grounds that they are in reasonably common non-specialist use.
If you've no idea what I'm on about, see here: Absent Antonyms