1566, "an outlaw," specifically "one of a class of Irish robbers noted for outrages and savage cruelty," from Irish toruighe "plunderer," originally "pursuer, searcher," from Old Irish toirighim "I pursue," from toir "pursuit," from Celtic *to-wo-ret- "a running up to," from PIE root *ret- "to run, roll" (see rotary).
About 1646, it emerged as a derogatory term for Irish Catholics dispossessed of their land (some of whom subsequently turned to outlawry); c. 1680 applied by Exclusioners to supporters of the Catholic Duke of York (later James II) in his succession to the throne of England. After 1689, Tory was the name of a British political party at first composed of Yorkist Tories of 1680. Superseded c. 1830 by Conservative, though it continues to be used colloquially. As an adjective from 1680s. In American history, Tory was the name given after 1769 to colonists who remained loyal to the crown; it represents their relative position in the pre-revolutionary English political order in the colonies.
A Tory has been properly defined to be a traitor in thought, but not in deed. The only description, by which the laws have endeavoured to come at them, was that of non-jurors, or persons refusing to take the oath of fidelity to the state. [Jefferson, "Notes on the State of Virginia"]
mid-14c. (implied in Tartary, "the land of the Tartars"), from Medieval Latin Tartarus, from Persian Tatar, first used 13c. in reference to the hordes of Ghengis Khan (1202-1227), said to be ultimately from Tata, a name of the Mongols for themselves. Form in European languages probably influenced by Latin Tartarus "hell" (e.g. letter of St. Louis of France, 1270: "In the present danger of the Tartars either we shall push them back into the Tartarus whence they are come, or they will bring us all into heaven").
The historical word for what now are called in ethnological works Tatars. A Turkic people, their native region was east of the Caspian Sea. Ghengis' horde was a mix of Tatars, Mongols, Turks, etc. Used figuratively for "savage, rough, irascible person" (1660s). To catch a Tartar "get hold of what cannot be controlled" is recorded from 1660s; original sense not preserved, but probably from some military story similar to the old battlefield joke:
Irish soldier (shouting from within the brush): I've captured one of the enemy.
Captain: Excellent! Bring him here.
Soldier: He won't come.
Captain: Well, then, you come here.
Soldier: I would, but he won't let me.
Among the adjectival forms that have been used are Tartarian (16c.), Tartarous (Ben Jonson), Tartarean (17c.); Byron's Tartarly (1821) is a nonce-word (but a good one). Tartar sauce is attested by 1855, from French sauce tartare.