Extremum is a 8 letter English word. It's valid Scrabble word worth 19 points. It's valid Words with friends word worth 22 points.
You can make 101 anagrams from letters in extremum (eemmrtux).
1900-05; New Latin, noun use of neuter of Latin extrēmus extreme
But if so, what is the extremum which Cicero advises Quintus to accept?