The definition of a missive is a long letter, especially one written in a formal or official capacity.
An example of a missive is a long letter to the editor.
a letter or written message
Origin of missiveFrench (lettre) missive from Medieval Latin missivus from Classical Latin missus, past participle of mittere, to send: see mission
A written message; a letter. See Synonyms at letter.
Origin of missiveFrom Middle English (letter) missive (letter) sent (by superior authority) from Medieval Latin (litterae) missīvae feminine pl. of missīvus sent from Latin missus past participle of mittere to send
- Specially sent; intended or prepared to be sent.
- a letter missive
15th Century; from Medieval Latin missivus, from mittere (“to send").