cacoethes

The Speculator responded to the letter with a blend of commiseration and alarm: "this young gentleman's situation is truly pitiable. The cacoethes scribendi is certainly one of the most troublesome diseases of the mind; and when it thus totally possesses a man, I scarce know any madness equal to it" (51:20). The cacoethes scribendi, which as An Impartial and Candid Disquisition into the Case of Sporus, by A Lover of Truth and Impartiality (1755) explained, "is a hard Word for a Disease called in plain English, the Itch of Writing," was a staple of literary satire (24).

Chap. 14. Of Ulcers hard to be cured, commonly called Cacoethe, Telephium, and Chironium. […] Galen in his firſt Book of the Compoſition of Medicaments according to their kinds, Chap. 18. diſtinguiſheth between theſe Dyſepulote Ulcers, that is to ſay, ſuch as are hardly brought to a Cicatrice, and the Ulcers Cacoethe, or Malignant: and he calleth ſuch of them Dyſepulote, that ariſe from the conflux of either many or ſharp humors; […]