from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Everyday; commonplace: "There's nothing quite like a real . . . train conductor to add color to a quotidian commute” ( Anita Diamant).
- adj. Recurring daily. Used especially of attacks of malaria.
from the GNU version of the Collaborative International Dictionary of English
- adj. Occurring or returning daily.
- n. Anything returning daily; especially (Med.), an intermittent fever or ague which returns every day.
from The Century Dictionary and Cyclopedia
- Daily; occurring or returning daily: as, a quotidian fever.
- n. Something that returns or is expected every day; specifically, in medicine, a fever whose paroxysms return every day.
- n. A cleric or church officer who does daily duty.
- n. Payment given for such duty.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. found in the ordinary course of events
Middle English cotidien, from Old French, from Latin quōtīdiānus, from quōtīdiē, each day : quot, how many, as many as; + diē, ablative of diēs, day.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Anglo-Norman cotidian, cotidien, Middle French cotidian, cotidien, and their source, Latin cottīdiānus, quōtīdiānus ("happening every day"), from adverb cottīdiē, quōtīdiē ("every day, daily"), from an unattested adjective derived from quot ("how many") + locative form of diēs ("day"). (Wiktionary)