1. A scheme or maneuver designed to achieve an objective, as in surprising an enemy or deceiving someone. See Synonyms at wile.
2. The devising or execution of such schemes or maneuvers: "This devious, insinuating creature, whose every word and movement seemed part of the spinning of some invisible net of stratagem" (Richard Adams).
[Middle English, from Old French stratageme, from Old Italian stratagemma, from Latin stratēgēma, from Greek, from stratēgein, to be a general, from stratēgos, general : stratos, army; see ster-2 in the Appendix of Indo-European roots + agein, to lead; see ag- in the Appendix of Indo-European roots.]
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