trickery (n.)

"deceive by trickery," 1590s, from trick (n.). Related: Tricked; tricking. The sense of "to dress, adorn" (c. 1500) is perhaps a different word entirely.

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."