"junior, younger; inferior in rank," c. 1300 in Anglo-Latin, from Old French puisné "born later, younger, youngest" (see puny). As a noun from 1590s, "a junior, an inferior," especially "a judge of inferior rank."
1610s, "a selection, something picked out," from cull (v.). From 1791 as "flock animal selected as inferior;" 1958 as "a killing of animals deemed inferior."
late 15c., "a matching to one of inferior rank or condition," from Old French desparagement, from desparagier (see disparage). The older noun was simply disparage (mid-14c.), from Old French desparage. From 1590s as "injury by union or comparison with something of inferior excellence, act of depreciating, a lowering of the estimation or character" of a person or thing.
"junior military officer," 1680s, earlier more generally, "person of inferior rank" (c. 1600), noun use of adjective subaltern "having an inferior position, subordinate" (1580s), from French subalterne, from Late Latin subalternus, from Latin sub "under" (see sub-) + alternus "every other (one), one after the other" (from PIE root *al- "beyond").