Cerberean

Their and our forefathers had to undergo a schooling of near upon ten centuries to prepare them and us, their latest offspring, to snatch the golden fruits of Independence from the Cerberean guardianship of Tyranny, and thereby prove to all mankind what dignity and worthiness the human race is capable of, under proper training and a proper system of education.

Social relations in our Southern States, 1860

Be this as it may, the evil spirit of jealousy, and with it the Cerberean whelps of feud and slander, no longer walk their rounds, in cultivated society.

Biographia Literaria Samuel Taylor Coleridge 1803

I must likewise take notice, that there are in Milton several Words of his own coining, as Cerberean, miscreated, Hell-doom'd, Embryon Atoms, and many others.

The Spectator, Volume 2. Richard Steele 1700

I must admit that I have not been watching very carefully the admittance of the naughty bits of the language into dictionaries, but I am pleased to see that their omission, so long a sop to the Cerberean self-styled "guardians" of the language, chiefly struthious provincials in the Bible Belt, Texas, and -- believe it or not -- California, has ended.

VERBATIM: The Language Quarterly Vol XVIII No 1 1991

"Population, if not proscribed and worried down by the Cerberean dogs of this wretched and cruel system, really does press against the level of the means of subsistence, and still elevating that level, it continues thus to urge society through advancing stages, till at length the strong and resistless hand of necessity presses the secret spring of human prosperity, and the portals of Providence fly open, and disclose to the enraptured gaze the promised land of contented and rewarded labour."

Miscellaneous Writings and Speeches — Volume 2 Thomas Babington Macaulay Macaulay 1829