de·vise 
/dɪˈvaɪz/ verb
de·vis·es; de·vised; de·vis·ing /dɪˈvaɪz/ verb [+ obj] : to invent or plan (something that is difficult or complicated)
▪ They have devised a new method for converting sunlight into electricity. ▪ She is accused of devising [=hatching] a plot to overthrow the government.
▪ They have devised a new method for converting sunlight into electricity. ▪ She is accused of devising [=hatching] a plot to overthrow the government.
