Where does “lundi” come from?

lundi (Gallo) comes from Old French lundi, from Latin Lūnae dīēs, from Latin dies Lūnae, from Ancient Greek σελήνη, from Ancient Greek Σέλας.

lundi (Gallo): Monday

Definitions

Step	Language	Word	Meaning
1	Old French	lundi	Monday
2	Latin	Lūnae dīēs	—
3	Latin	dies Lūnae	—
4	Ancient Greek	σελήνη	moon; month; a moon-shaped cake
5	Ancient Greek	Σέλας	—

lundi — Etymology, Origin & Word History | Etymology Explorer