From eleutheros; freedom (legitimate or licentious, chiefly moral or ceremonial) -- liberty.
see GREEK eleutheros
a. liberty to do or to omit things having no relation to salvation, 1 Corinthians 10:29; from the yoke of the Mosaic law, Galatians 2:4; Galatians 5:1, 13; 1 Peter 2:16; from Jewish errors so blinding the mental vision that it does not discern the majesty of Christ, 2 Corinthians 3:17; freedom from the dominion of corrupt desires, so that we do by the free impulse of the soul what the will of God requires: ὁ νόμος τῆς ἐλευθερίας, i. e. the Christian religion, which furnishes that rule of right living by which the liberty just mentioned is attained, James 1:25; James 2:12; freedom from the restraints and miseries of earthly frailty: so in the expression ἡ ἐλευθερία τῆς δόξης (epexegetical genitive (Winer's Grammar, 531 (494))), manifested in the glorious condition of the future life, Romans 8:21.
b. fancied liberty, i. e. license, the liberty to do as one pleases, 2 Peter 2:19. J. C. Erler, Commentatio exeg. de libertatis christianae notione in N. T. libris obvia, 1830 (an essay I have never had the good fortune to see).