inferior (adj.) Look up inferior at Dictionary.com
early 15c., of land, "low, lower," from Latin inferior "lower, further down" (also used figuratively), comparative of inferus (adj.) "that is below or beneath," from infra "below" (see infra-). Meaning "lower in degree, rank, or importance" is from 1530s; also in an absolute sense, "of low quality or rank."
inferior (n.) Look up inferior at Dictionary.com
"person inferior to another in rank, etc.," early 15c., from inferior (adj.).