Do not threaten, bully or otherwise lose the professional tone of your missive.
Sitting down with some cookies, cocoa and Christmas-styled stationery to draft a missive to the jolly old elf can be one of the most magical things you do during the holiday season.
My letters are so small none will ever see my missive, but there it will remain and give me strength for what I am now resigned I must do.
A licence under the Great Seal to proceed to the election of a bishop, known as the conge d'eslire, together with a letter missive containing the name of the king's nominee, is thereupon sent to the dean and chapter, who are bound under the penalties of Praemunire to proceed within twelve days to the election of the person named in it.
It was the hand of the author of that offensive Missive to Frederick William III., on the liberty of the press, that drafted the Carlsbad decrees; it was he who inspired the policy of repressing the freedom of the universities; and he noted in his diary as "a day more important than that of Leipzig" the session of the Vienna conference of 1819, in which it was decided to make the convocation of representative assemblies in the German states impossible, by enforcing the letter of Article XIII.