Operation Greif not mispelled
Greif is German for griffin, a mythical animal with the head and wings of an eagle and the body and tail of a lion.
This info was in the section of this episode.
Sometime back, IMDb had the episode listed as "Operation: Grief," which was misspelled. That's what the other thread is complaining about. It's long since been corrected.
§ "Precisely the point of a lonnnng dinin' table."