The di used in all weekdays come from dies (e.g. dies dominicus → dimanche, lunae dies → lundi…).

Jour and diurne come indirectly from dies too. (dies → diurnus → jorn → jour)

Aujourd’hui is coming twice from dies: jour as already written, and hui from hodie / hoc die (in this day).

Midi (noon) and méridien from meridies (medius dies)

Circadien from circa diem (about one day).

diète from dieta , dies

jadis from old French ja a dis

tandis from Latin tamdiu (tam diu)