sentences:  Quotations in the "Oxford English Dictionary" for the synonymous noun "legendary" date from 1513.The Middle English "South English Legendary" is an example of this form of the noun.Tolkien used the term "legendarium" with reference to his works in four letters between 1951 and 1955, a period in which he was attempting to have his unfinished "Silmarillion" published alongside the more complete "The Lord of the Rings"