Quotidian Fever
/kwəˈtɪd.i.ən ˈfiː.vər/noun
A fever that recurs daily or approximately every 24 hours, especially one associated historically with certain forms of malaria.
Did you know?In classical and medieval medicine, fever patterns were carefully classified by their recurrence interval, while modern quotidian malaria can be associated with the 24-hour parasite cycle of Plasmodium knowlesi.
Etymological Timeline
Proto-Indo-European
PIE
*dyeu- / *diyew-
“Daylight, sky, or the bright heavens; the ancient root behind the daily sense of quotidian.”
Latin
Latin
quotidie
“Every day; literally, each day.”
Latin
Latin
quotidianus
“Daily or occurring every day.”
13th Century
Old French
quotidien
“Daily; ordinary or occurring each day.”
14th Century
English
quotidian
“Daily, customary, or ordinary.”
14th–15th Century
Medical English
quotidian fever
“A fever recurring each day, a term used in the classification of intermittent fevers.”
Modern English
English
quotidian fever
“A daily or approximately 24-hour recurrent fever, especially in medical contexts.”