scheme (n.) Look up scheme at Dictionary.com
1553, "figure of speech," from M.L. schema "shape, figure, form, figure of speech," from Gk. skhema (gen. skhematos) "figure, appearance, the nature of a thing," related to skhein "to get," and ekhein "to have," from PIE base *segh- "to hold, to hold in one's power, to have" (cf. Skt. sahate "he masters," sahah "power, victory;" Avestan hazah "power, victory;" Gk. ekhein "to have, hold;" Goth. sigis, O.H.G. sigu, O.N. sigr, O.E. sige "victory"). The sense "program of action" first is attested 1647. Unfavorable overtones (selfish, devious) began to creep in early 18c. The verb, in the sense of "devise a scheme," was first recorded 1767. Color scheme is attested from 1884.