What is "missives"

Usage examples of "missives".

It also may become necessary to confiscate future missives from the king, if he mentions anything to do with this latest development.

But he had his suspicions, fostered by letters that Rani sent regularly to Amanthia, long missives sealed with the waxen symbol of the still-dead glass-wrights guild.

But, blast it, Claresta had not answered his three missives pleading with her to visit him and his mother in Grosvenor Square where their business could be conducted in private.

Seems Norwood left before daylight and the clerk, when he awoke from his doze, found the messages along with one to the hotel stating that if they delivered the missives to the appropriate parties a settlement would be forthcoming.