information:classification, stylistic:tone
Etymology

Benthamism, the utilitarian philosophy founded by Jeremy Bentham, was substantially modified by his successor John Stuart Mill, who popularized the term utilitarianism. In 1861, Mill acknowledged in a footnote that, though Bentham believed "himself to be the first person who brought the word 'utilitarian' into use, he did not invent it. Rather, he adopted it from a passing expression" in John Galt 's 1821 novel Annals of the Parish. However, Mill seems to have been unaware that Bentham had used the term utilitarian in his 1781 letter to George Wilson and his 1802 letter to Étienne Dumont.