Green’s Dictionary of Slang

an abstract, a theory, an ‘-ism’.

1811		E. Nares Thinks-I-to-myself (5th edn) I 68: She had attended a world of fashionable lectures, and was therefore supposed to understand Chemistry, Geology, Philology, and a hundred other ologies .
1844		Gleaner (Manchester, NH) 12 Oct. n.p.: Will an acquaintance with all the ologies construct a pudding or a loaf of bread.
1854		Delhi Sketch Bk 1 Apr. 41/1: [A]s for the ics and ologies that the new generation have got at their fingers’ ends, devil a bit of all that was heard of in India.
1857		C. Kingsley Two Years Ago I 117: All which is required to cast out the devil is a smattering of the ’ologies.
1865		Buffalo Eve. Post (NY) 24 May 3/4: Heal and Toe-ology, by the little pet Hattie.
1866		Wild Boys of London I 263/1: The servants came. They were two of the most gorgeous. Their plushes and calves were the perfection of flunkeology.
1875		M.D. Landon Eli Perkins 53: How they can show off their Biblical knowledge and bug-and-spiderology!
1880		Oneida Jrnl (KS) 3 Jan. 3/1: All who wished could amuse themselves — demonstrating in heelanthropy and toeology.
1892		W. Norr Stories of Chinatown 63: Yer beefstew’s a little on the toughology.
1893		J. Hawthorne Confessions of Convict 19: He had sojourned for four years for ‘glimming at bank-businesss,’ as the offence is designated by crookology.
1894		Rock Is. Argus (IL) 19 Feb. 5/4: Two young men, one of whom was a little worse for bozology.
1902		Bulletin (Sydney) 29 Nov. 31/2: He can’t get his cussology goin’, an’ makes an awful jumble of it.
1903		Bulletin (Sydney) 3 Dec. 16/4: Talk drifted through the whole gamut of bush skiteology.
1914		B.T. Harvey ‘Addenda -The Northwest’ in DN IV:ii 162: bugology, n. Bacteriology.
1922		‘J.H. Ross’ Mint (1955) 121: Give the ignorant shit-bag a fucking great gob of your toffology.
1922		E. Murphy Black Candle 320: The failure of the psychologist arises from his blind faith in his ’ology.
1954		B. Kiely Honey Seems Bitter 97: ‘Ballsology,’ Butler said. ‘The point is which horse.’.
1967		C. Cooper Jr Farm (1968) 119: Freakology is common in the family of bureaucracy.
1991		R. Doyle Van (1998) 396: The best thing he’d ever done was give up on that Man in the Iron Mask fuckology. [Ibid.] 630: He was licking up to Jimmy Sr now because the No Hard Feelings wankology had failed.
1994		Rebennack & Rummel Under A Hoodoo Moon 2: The temples of tricknology that had kept the New Orleans music scene alive. [...] This is a testament to New Orleans funk—to funksterators, tricknologists, mu-jicians.
2000		J.J. Connolly Layer Cake 36: Psychology, sociology, theology and every fuckin other sort of fuckology.
2000		Guardian Rev. 12 May 7: Jack Nicholson, a manic spliffologist in his private life.
2002		W. Fiennes Snow Geese (2002) 167: Majored in bum-ology and tramp-ology.
2002		O’Byrne Files: Dublin Sl. Dict. 🌐 Arseology Ridiculous and needless carry on.