missive

[ mis-iv ]
/ ˈmɪs ɪv /

noun

a written message; letter.

adjective

sent or about to be sent, especially of a letter from an official source.

Origin of missive

1400–50; late Middle English (letter) missive < Medieval Latin (littera) missīva sent (letter), equivalent to Latin miss(us) (past participle of mittere to send) + -īva, feminine of -īvus -ive
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for missive

British Dictionary definitions for missive

missive

/ (ˈmɪsɪv) /

noun

a formal or official letter
a formal word for letter

adjective

rare sent or intended to be sent

Word Origin for missive

C15: from Medieval Latin missivus, from mittere to send
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012