Green’s Dictionary of Slang

(UK Und.) counterfeit, fake.

1612		Dekker ‘Canting Song’ O per se O O1: And Iybe well Ierkt, tick rome confeck, for backe by glymmar to mawnd.
1648		Dekker ‘Canters Dict.’ Eng. Villainies (9th edn).
1665		Head Eng. Rogue I 48: Confeck, Counterfeit.
a.1674		‘Canting Song’ Head Canting Academy (1674) 23: [as cit. 1612].
1688		R. Holme Academy of Armory Ch. iii item 68c: Canting Terms used by Beggars, Vagabonds, Cheaters, Cripples and Bedlams. [...] Confeck, Counterfeit.
c.1698		B.E. Dict. Canting Crew n.p.: Confect, Counterfeit.
1707		J. Shirley Triumph of Wit 196: [as cit. 1612].
1725		New Canting Dict. [as cit. c.1698].
1737, 1759, 1760, 1776		Bailey Universal Etym. Eng. Dict. [as cit. c.1698].
1754		Scoundrel’s Dict. 16: Counterfeit – Confeck.
1785, 1788, 1796		Grose Classical Dict. of the Vulgar Tongue.
1811		Lex. Balatronicum.
1823		Egan Grose’s Classical Dict. of the Vulgar Tongue.