Suited or acceptable to the purpose or circumstances; fit, suitable. / Following the established standards of behavior or manners; correct or decorous.

(UK, Australia, colloquial) properly; thoroughly; completely. / (nonstandard, colloquial) properly.

(obsolete) Something set apart for a special use.

The state or condition of being proper; propriety. / (mathematics) The state or condition of being proper (of a proper fraction, proper subset, etc.). / (obsolete) Excellence, quality.

(obsolete) To hasten or press forward.

(nonstandard) comparative form of proper: more proper

(obsolete) The act of hastening; haste.

present participle of properate

plural of proper

(slang) proper treatment, respect