adj. Inflected to express plea, insistence, imploring, self-encouragement, wish, desire, intent, command, purpose, or consequence.
n. The cohortative mood.
The Century Dictionary and Cyclopedia
In Hebrew grammar, noting exhortation or encouragement.
n. The cohortative tense.
Word Usage
"A certain kind of fictionalist might claim that the real meaning of “Stealing is wrong” should be rendered in the cohortative mood (which in English is not grammatically distinguished from imperative): “Let's pretend that stealing is wrong.”"