Green’s Dictionary of Slang

to steal; thus conveyor n., a thief.

1460		Bk Nurture 212 in Babees Bk 77: Take heede who takes thy spoon up For feare it be convayde [OED].
1512		Hickscorner Aiii: Syr, the whoresones coude not conuaye clene [...] Yet as for me I was neuer a thefe.
1569–70		T. Preston Cambyses F: A quick eye, a sharpe knife, at hand a receiuer: But then take heed Cosin ye be a clenly conuayour.
1575-83		‘Bashe Libel’ in May & Bryson Verse Libel 77: Clippers, coyners and conveyers.
c.1597		Shakespeare Merry Wives of Windsor I iii: ‘Convey,’ the wise it call. ‘Steal!’ foh! a fico for the phrase.
1607		Marston What you will III i: I am Crack, I will conuay crosbite and cheat vpon Simplicius.
1621		Jonson Gypsies Metamorphosed 4: ’Tis thought fit he marche in the Infants Equipage With the convoy cheates, and peckage out of the clutch of Harman-beckage, to theire Libkens at the Crackmans or some skipper of the Black-mans.
1860		Hotten Dict. of Modern Sl. etc. (2nd edn).
1873		Sl. Dict.
1883		A. Dobson Old World Idylls 237: The ballad you sing is but merely conveyed From the stock of the Arnes and the Purcells of yore [F&H].
1890		Scots Observer 14 June 98/1 : Many of the other characters [...] obviously conveyed [...] from well-known novels [F&H].