Deceitful tricks and cunning behavior used to fool or cheat people.
From guile + -ry suffix (forming abstract nouns). This archaic term emerged in Middle English to describe the collective practice and art of deception, similar to how 'archery' describes the practice of archery.
Medieval texts use 'guilery' to describe the elaborate schemes of con artists, and interestingly, the same techniques described 500 years ago still work today—human psychology hasn't changed much.
Complete word intelligence in one call. Free tier — 50 lookups/day.