artifice
Concise Oxford English Dictionary © 2008 Oxford University Press:
artifice /ˈɑːtɪfɪs/
▶noun clever devices or expedients, especially to trick or deceive others.
– origin ME (in the sense ‘workmanship’): from OFr., from L. artificium, based on ars ‘art’ + facere ‘make’.
'artifice' also found in these Oxford entries:

