But you had not the pluck for that; you must needs plot and replot to make some one else do your work.
Old English plot "small piece of ground," of unknown origin. Sense of "ground plan," and thus "map, chart" is 1550s; that of "a secret, plan, scheme" is 1580s, probably by accidental similarity to complot, from Old French complot "combined plan," of unknown origin, perhaps a back-formation from compeloter "to roll into a ball," from pelote "ball." Meaning "set of events in a story" is from 1640s. Plot-line (n.) attested from 1957.
1580s, "to lay plans for" (usually with evil intent); 1590s in the literal sense of "to make a map or diagram," from plot (n.). Related: Plotted; plotter; plotting.
The organization of events in a work of fiction.