| Definition -
(1) Grammatical rules proposed as a fixed standard to which language use must conform.
(2) A treatise setting out such rules.
1. A person who promotes this is called a normative grammarian.
Example - In his A Short Introduction to English Grammar (1762), Robert Lowth strongly advises writers to avoid ending sentences with prepositions. According to Lowth:
"This is an Idiom which our language is strongly inclined to [sic]; it prevails in common conversation, and suits very well with the familiar style in writing; but the placing of the Preposition before the Relative is more graceful, as well as more perspicuous; and agrees much better with the solemn and elevated Style."
Oxford English Dictionary - The term's first citation is from 1901:
"Normative or didactic grammar sets up a certain standard as correct."
(H. Oertel Lect. on Study of Lang. ii. 87)