thug (n.)youdaoicibaDictYouDict
1810, "member of a gang of murderers and robbers in India who strangled their victims," from Marathi thag, thak "cheat, swindler," Hindi thag, perhaps from Sanskrit sthaga-s "cunning, fraudulent," from sthagayati "(he) covers, conceals," perhaps from PIE root *(s)teg- (2) "to cover" (see stegosaurus).
The thugs roamed about the country in bands of from 10 to 100, usually in the disguise of peddlers or pilgrims, gaining the confidence of other travelers, whom they strangled, when a favorable opportunity presented itself, with a handkerchief, an unwound turban, or a noosed cord. The shedding of blood was seldom resorted to. The motive of the thugs was not so much lust of plunder as a certain religious fanaticism. The bodies of their victims were hidden in graves dug with a consecrated pickax, and of their spoil one third was devoted to the goddess Kali, whom they worshiped. [Century Dictionary]
The more correct Indian name is phanseegur (from phansi "noose"), and the activity was described in English as far back as c. 1665. Rigorously prosecuted by the British from 1831, they were driven from existence by century's end. Transferred sense of "ruffian, cutthroat, violent lowbrow" is from 1839.
Tory (n.)youdaoicibaDictYouDict
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 Superseded c. 1830 by Conservative, though it continues to be used colloquially. In American history, Tory was the name given after 1769 to colonists who remained loyal to George III of England; it represents their relative position in the pre-revolutionary English political order in the colonies. As an adjective from 1680s.
dacoityoudaoicibaDictYouDict
"(In India or Burma (Myanmar)) a member of a band of armed robbers", From Hindi ḍakait, from ḍakaitī 'robbery by a gang'.