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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, Democritus Junior [pseudonym; Robert Burton], The Anatomy of Melancholy, Oxford: Printed by Iohn Lichfield and Iames Short, for Henry Cripps, OCLC 216894069; The Anatomy of Melancholy: [], 2nd corrected and augmented edition, Oxford: Printed by John Lichfield and James Short, for Henry Cripps, 1624, OCLC 54573970, (please specify |partition=1, 2, or 3):
      , 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.



dēliquium n (genitive dēliquiī); second declension

  1. want, defect
  2. eclipse


Second declension.

Case Singular Plural
nominative dēliquium dēliquia
genitive dēliquiī dēliquiōrum
dative dēliquiō dēliquiīs
accusative dēliquium dēliquia
ablative dēliquiō dēliquiīs
vocative dēliquium dēliquia