ordinaryordinary

Ordinary comes from Anglo-Norman ordenarie and Middle French ordinaire, from Medieval Latin ordinarius, from Latin ōrdinārius ‘regular’, from ōrdō.

1. Latinc. 75 BCE–200 CEōrdō¹‘order’
2. Latinc. 75 BCE–200 CEōrdinārius¹‘regular, orderly’
3. Medieval Latinc. 600–1500ordinarius¹
4. Anglo-Normanc. 1066–1400ordenarie¹
5. Englishearliest quotation c. 1598–1600ordinary¹

1. ¹ Wiktionary, English ordinary
2. Earliest quotation in Wiktionary’s entry: c. 1598–1600, William Shakespeare, As You Like It: “I ſee no more in you than in the…”.