PROPER a.
Befitting one's nature, qualities, etc.; suitable in all respect; appropriate; right; fit; decent; as, water is the proper element for fish; a proper dress. The proper study of mankind is man. Pope. In Athens all was pleasure, mirth, and play, All proper to the spring, and sprightly May. Dryden.
PROPRIETY n.
The quality or state of being proper; suitableness to an acknowledged or correct standard or rule; consonance with established principles, rules, or customs; fitness; appropriateness; as, propriety of behavior, language, manners, etc. "The rule of propriety," Locke.
PROSECUTION n. 3 definitions
The act or process of prosecuting, or of endeavoring to gain or accomplish something; pursuit by efforts of body or mind; as, the prosecution of a scheme, plan, design, or undertaking; the prosecution of war. Keeping a sharp eye on her domestics . . . in prosecution of their various duties. Sir W. Scott.…
QUEST n. 2 definitions
The act of seeking, or looking after anything; attempt to find or obtain; search; pursuit; as, to rove in quest of game, of a lost child, of property, etc. Upon an hard adventure yet in quest. Spenser. Cease your quest of love. Shak. There ended was his quest, there ceased his care. Milton.