plant (n.) Look up plant at Dictionary.com
O.E. plante "young tree or shrub, herb newly planted," from L. planta "sprout, shoot, cutting," perhaps from *plantare "to drive in with the feet, push into the ground with the feet," from planta "sole of the foot," from nasalized form of PIE *plat- "flat" (see place (n.)). Ger. Pflanze, Ir. cland, Welsh plant are from Latin. Broader sense of "any vegetable life" is first recorded 1551. The verb, "put in the ground to grow," is O.E. plantian, from L. plantare, from planta. Most extended usages are from the verbal sense. Sense of a building "planted" or begun for an industrial process is first attested 1789. Slang meaning "a spy" is first recorded 1812. Planter "proprietor of a cultivated estate in W.Indies or southern colonies of N.America" is attested from 1647; hence planter's punch (1924).