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adj. 1. Everyday; commonplace: "There's nothing quite like a real ... train conductor to add color to a quotidian commute" (Anita Diamant). 2. Recurring daily. Used especially of attacks of malaria. [Middle English cotidien, from Old French, from Latin quōtīdiānus, from quōtīdiē, each day : quot, how many, as many as; see kwo- in the Appendix of Indo-European roots + diē, ablative of diēs, day; see dyeu- in the Appendix of Indo-European roots.] |
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