E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Conservative (4 syl.).
A medium Toryone who wishes to preserve the union of Church and State, and not radically to alter the constitution. The word was first used in this sense in 1830, in the January number of the Quarterly ReviewWe have always been conscientiously attached to what is called the Tory, and which might with more propriety be called the Conservative party (p. 276).
Canning, ten years previously, had used the word in a speech delivered at Liverpool in March, 1820. In Lord Salisburys Ministry those Whigs and Radicals who joined the Conservatives were called Liberal Unionists because they objected to give Ireland a separate parliament (1885).