Definition of "unfix" [un•fix]

• To detach from what secures; unfasten. (verb-transitive)
• To cause to leave a tranquil condition; disturb. (verb-transitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "I was lying on the sofa, with a book and a wine-glass, at about that time, when the door opened, and a gentleman in a stiff cravat, within a year or two on either side of thirty, entered, in his hat and gloves; walked up to the looking-glass; arranged his hair; took off his gloves; slowly produced a measure from the uttermost depths of his coat pocket; and requested me, in a languid tone, to "unfix" my straps."
• "I was lying on the sofa, with a book and a wine-glass, at about that time, when the door opened, and a gentleman in a stiff cravat, within a year or two on either side of thirty, entered, in his hat and gloves; walked up to the looking-glass; arranged his hair; took off his gloves; slowly produced a measure from the uttermost depths of his coat-pocket; and requested me, in a languid tone, to 'unfix' my straps."
• "He attempted to withdraw his hand but Carrigan maintained an unconscious clamp on it, which threw Daniel's free hand into dire confusion: it moved to unfix its imprisoned sibling, but, to its utter horror, found itself established atop Carrigan's wrist in a four-layer embrace that could only be described as intimate."