Where does “londi” come from?

londi (Franco-Provençal) comes from French lundi, from Old French lundi, from Latin Lūnae dīēs, from Latin dies Lūnae, from Ancient Greek σελήνη, from Ancient Greek Σέλας — light, brightness, the bright flame or blaze of fire.

Ancestry of “londi”, step by step

Step	Language	Word	Meaning
1	French	lundi	Monday
2	Old French	lundi	Monday
3	Latin	Lūnae dīēs	—
4	Latin	dies Lūnae	Monday
5	Ancient Greek	σελήνη	moon; month; a moon-shaped cake
6	Ancient Greek	Σέλας	light, brightness, the bright flame or blaze of fire

Every word from Ancient Greek Σέλας →Every word from Ancient Greek σελήνη →Every word from Latin dies Lūnae →