machinate \MAK-uh-neyt\,
verb:
to contrive or plot, especially artfully or with evil purpose: to machinate the overthrow of the government.
...his malevolent memory would machinate on [it], until the day the darkness he so passionately believed in but just as passionately tried to avoid finally descended.
-- Michael Walsh, "Early Warning," 2010
You do not think I am intelligent enough to scheme? Then I haven't the wits necessary to machinate?
-- Connie Brockway, "So Enchanting," 2009
Machinate entered English from the Latin machina in the first half of the fifteenth century.
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