Origin of quartanMiddle English quartaine from Middle French (fièvre) quartaine from Classical Latin (febris) quartana, (fever) occurring every fourth day, feminine of quartanus from quartus, fourth: see quart
Origin of quartanMiddle English quartaine from Old French from Latin quārtāna from quārtānus of the fourth from quārtus fourth ; see kwetwer- in Indo-European roots.
- (medicine, historical) A fever whose symptoms recur every four days.
(comparative more quartan, superlative most quartan)
- (medicine) Recurring every four days; especially in designating a form of malaria with such symptoms.