Definition:
"A sentence that gives a command or gives a request to do something."
"Imperative Sentence." Cambridge Dictionary, Cambridge University Press,
dictionary.cambridge.org/dictionary/english/imperative-sentence.
Accessed 31 Aug. 2022.
Informal Definition:
A sentence that orders for something to be done, usually expresses a change in emotion or tone.
Example: Don’t forget to sweep the floor.
Etymology:
“1520s, in grammar, ‘expressing command,’ used of the form of a verb which expresses command, entreaty, advice, or exhortation, from Late Latin imperativus ‘pertaining to a command,’ from imperat-, past participle stem of imperare ‘to command, requisition,’ from assimilated form of in-"into, in" (from PIE root *en "in") + parare ‘to arrange, prepare, adorn’ (from PIE root *pere- (1) "to produce, procure").”
Harper, Douglas. “Etymology of imperative.” Online Etymology Dictionary, https://www.etymonline.com/word/imperative. Accessed 29 August, 2022.