① ultimate dictionary authority today - Oxford English Dictionary ② prescriptive method - a record of scholarly opinion regarding how language should be used ③ Johnson's dictionary - Dictionary of the English Language ④ historical method - the use of literary texts to establish context for definitions of words ⑤ Webster's dictionary - American Dictionary of the English Language ⑥ etymology - the history of a word ⑦ lexicography - the science of dictionary making ⑧ language purists - believed that language change was the result of language corruption ⑨ grammarians - scholars who set standards for how language should be used ⑩ descriptive method - a record of the way in which language is actually used ⑪ language fixing - attempts to slow or halt language change
To make it even more easy - look at the attachment below :) Hope it helps!
