- upper (adj.)
- c.1300, originally comparative of up (adj.). Cf. similarly formed Middle Dutch upper, Dutch opper, Low German upper, Norwegian yppare. Upper hand "advantage" is late 15c., probably from wrestling. Upperclassman is recorded from 1871.
Upper crust is attested from mid-15c. in reference to the top crust of a loaf of bread, 1836 in reference to society. Upper middle class (adj.) is first recorded 1872. Upper ten thousand (1844) was common mid-19c. for "wealthier and more aristocratic part of a large community;" hence uppertendom.
- upper (n.)
- "part of a shoe above the sole," 1789, from upper (adj.). Sense of "stimulant drug" is from 1968, agent noun from up (v.).