mid-14c., "one who solicits to sin; that which entices to evil" (originally especially the devil), from Old French tempteur (14c.), *tempteor, from Latin temptatorem, agent noun from temptare "to feel, try out" (see tempt).
c. 1200, "act of enticing someone to sin," also "an experience or state of being tempted," from Old French temptacion (12c., Modern French tentation), from Latin temptationem (nominative temptatio), noun of action from past-participle stem of temptare "to feel, try out" (see tempt). Meaning "that which tempts a person (to sin)" is from c. 1500.
mid-15c. (implied in tauntingly), possibly [Skeat] from French tanter, tenter "to tempt, try, provoke," variant of tempter "to try" (see tempt). Or from French tant pour tant "so much for so much, tit for tat," on notion of "sarcastic rejoinder" (considered by OED the "most likely suggestion"), thus from Old French tant "as much," from Latin tantus, from tam "so;" see tandem. Related: Taunted; taunting.
late 15c. (Caxton), "to make a public scandal of" (a sense now obsolete), from Old French scandaliser (12c.), from Church Latin scandalizare, from late Greek skandalizein "to make to stumble; tempt; give offense to (someone)," from skandalon (see scandal).
The sense of "shock by doing something improper, offend by some action considered very wrong or outrageous" is by 1640s. Dryden and Shakespeare use simple scandal as a verb. Related: Scandalized; scandalizing; scandalization.