1590s, "behavior or practices characteristic of rogues; the life of a vagrant," from rogue (n.) + -ery. From 1610s as "knavish tricks, dishonest practices, rascally acts."
Entries linking to roguery
rogue n.
1560s, "idle vagrant, sturdy beggar, one of the vagabond class," a word of shadowy origin, perhaps a shortened form of roger (with a hard -g-), thieves' slang for a begging vagabond who pretends to be a poor scholar from Oxford or Cambridge, which is perhaps an agent noun in English from Latin rogare "to ask." Another theory [Klein] traces it to Celtic (compare Breton rog "haughty"); OED says, "There is no evidence of connexion with F. rogue 'arrogant' " (the theory supported in Century Dictionary).
By 1570s, generally, as "dishonest, unprincipled person, rascal." In slight playful or affectionate use, "one who is mischievous," 1590s. Meaning "large wild beast living apart from the herd" is by 1859, originally of elephants. As an adjective, in reference to something uncontrolled, irresponsible, or undisciplined, by 1964. Also common in 17c. as a verb. Rogue's gallery "police collection of mug shots of notorious law-breakers" is attested from 1859.
-ery
word-forming element making nouns meaning "place for, art of, condition of, quantity of," from Middle English -erie, from Latin -arius (see -ary). Also sometimes in modern colloquial use "the collectivity of" or "an example of."