- proper
- early 13c., "adapted to some purpose, fit, apt," from O.Fr. propre (11c.), from L. proprius "one's own, particular to itself," from pro privo "for the individual." Proper name "belonging to or relating to the person or thing in question," is from late 13c., a sense also preserved in astronomical proper motion (c.1300). Meaning "socially appropriate" is first recorded 1704.