quotidian

The story

1. Latin · derived fromcottīdiānus
2. Middle French · derived fromcotidian
3. Anglo-Norman · derived fromcotidian
4. English todayquotidian

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”).

First known use, by meaning

• from 15th c. Happening every day; daily.
• from 15th c. Having the characteristics of something which can be seen, experienced, etc, every day or very commonly.
• from 14th c. Recurring every twenty-four hours or (more generally) daily (of symptoms, etc).
• from 14th c. A fever which recurs every day; quotidian malaria.
• from 16th c. A daily allowance formerly paid to certain members of the clergy.
• from 20th c. Commonplace or mundane things regarded as a class.