From Latin delinquere(to lack, to fail)


deliquium ‎(plural deliquiums)

  1. (chemistry) Liquefaction through absorption of moisture from the air.
  2. (pathology) An abrupt loss of consciousness usually caused by an insufficient blood flow to the brain; fainting.
    • 1621, Robert Burton, The Anatomy of Melancholy, vol.1, New York, 2001, p.387:
      If he be locked in a close room, he is afraid of being stifled for want of air, and still carries biscuit, aquavitæ, or some strong waters about him, for fear of deliquiums, or being sick […].
  3. (literary, figuratively) A languid, maudlin mood.
  4. (rare) An abrupt absence of sunlight, e.g. caused by an eclipse.