Its variations show a familiar effort to bring a new and strange word into harmony with the languageāan effort arising from what philologists call the law of Hobson-Jobson.
Ibid., chapter 10, section 3,
Reckawackes, by the law of Hobson-Jobson, was turned into Rockaway, and Pentapang into Port Tobacco.
1921, John S. Farmer, A Dictionary of Slang and Colloquial English Slang and Its Analogues, page 482, s.v. Tommy-axe,
Tommy-axe. A corruption of tomahawk: an instance of the law of Hobson-Jobson (q.v.).