vice n.1

early 14c., "a winch, crane," from Anglo-French vice, Old French vis, viz "screw," from Latin vītis "vine, tendril of a vine," literally "that which winds," from root of viere "to bind, twist" (from PIE root *wei- "to turn, twist, bend"). Also in Middle English, "device like a screw or winch for bending a crossbow or catapult; spiral staircase; the screw of a press; twisted tie for fastening a hood under the chin." The modern meaning "clamping tool with two jaws closed by a screw" is first recorded c. 1500.

late 14c., "unwholesome, impure, of the nature of vice, wicked, corrupting, pernicious, harmful;" of a text, "erroneous, corrupt," from Anglo-French vicious, Old French vicios "wicked, cunning, underhand; defective, illegal" (Modern French vicieux), from Latin vitiosus (Medieval Latin vicious) "faulty, full of faults, defective, corrupt; wicked, depraved," from vitium "fault" (see vice (n.1)).

Meaning "inclined to be savage or dangerous" is first recorded 1711 (originally of animals, especially horses); that of "full of spite, bitter, severe" is from 1825. In law, "marred by some inherent fault" (late 14c.), hence also this sense in logic (c. 1600), as in vicious circle in reasoning (c. 1792, Latin circulus vitiosus), which was given a general sense of "a situation in which action and reaction intensify one another" by 1839. Related: Viciously (mid-14c., "sinfully"); viciousness.