subordinate
adj.
mid-15c., "having an inferior rank," from Medieval Latin subordinatus "placed in a lower order, made subject," past participle of subordinare "place in a lower order," from Latin sub "under" (see sub-) + ordinare "arrange, set in order" (see ordain). Related: Subordinance; subordinant; subordinately. For "of or pertaining to the classificatory rank of a suborder," subordinal (1842) is used.
v.
"to bring into a subordinate position to something else, to make of less value, to make auxiliary or dependent," 1590s, from Medieval Latin subordinatus (see subordinate, adj.). Related: Subordinated; subordinating.
n.
"one inferior in power, rank, office, etc.," 1630s, from subordinate, adj..
〔李〕[sub-=under 下；ordin=order 次序；-ate=to make 使 →“to make one's order under...使处于…之下”→] Ⅰ v. place in lower order or rank 把…列在下级，使服从于
〔李〕[sub-=under在……之下；ordin=series顺序；-ate a.=-being……的→“being under in order按顺序排在下面的”→]Ⅰa.① being in a lower order or rank下级的