rig (v.) Look up rig at Dictionary.com
late 15c., originally nautical, "to fit with sails," probably from a Scandinavian source (cf. Danish, Norwegian rigge "to equip," Swedish rigga "to rig"), though these may be from English. Slang meaning "to pre-arrange or tamper with results" is attested from 1938. Related: Rigged; rigging.
rig (n.) Look up rig at Dictionary.com
"distinctive arrangement of sails, masts, etc. on a ship," 1822, from rig (v.); extended to horse vehicles (1831), which led to sense of "truck, bus, etc." (1851).