stratagem
Concise Oxford English Dictionary © 2008 Oxford University Press:
stratagem /ˈstratədʒəm/
▶noun
- 1 a plan or scheme intended to outwit an opponent.
- 2 archaic cunning.
– origin C15 (orig. denoting a military ploy): from Fr. stratagème, via L. from Gk stratēgēma, from stratēgein ‘be a general’.
'stratagem' also found in these Oxford entries:

