Where does “Mondayishness” come from?

Mondayishness (English) comes from English Mondayish, from English monday, from Middle English Monday, from Old English mōnandæġ, from Proto-Germanic *mānini dag, from Latin dies Lūnae, from Ancient Greek σελήνη, from Ancient Greek Σέλας — light, brightness, the bright flame or blaze of fire.

Mondayishness (English): The quality of being Mondayish

Definitions

  1. The quality of being Mondayish

Ancestry of “Mondayishness”, step by step

Mondayishness traces back through two separate lines of ancestry.

via English Mondayish

StepLanguageWordMeaning
1EnglishMondayishon, or around Monday; feeling ill, especially...
2EnglishmondayThe second day of the week in many religious traditions, and the first day of the week in systems using the ISO 8601 norm. It follows Sunday and precedes Tuesday
3Middle EnglishMondayMonday second day of the week
4Old Englishmōnandæġday of the moon
5Proto-Germanic*mānini dag
6Latindies LūnaeMonday
7Ancient Greekσελήνηmoon; month; a moon-shaped cake
8Ancient GreekΣέλαςlight, brightness, the bright flame or blaze of fire

via English Ness

StepLanguageWordMeaning
1EnglishNessAn Ulster princess and the mother of Conchobar mac Nessa and Findchoem in the Ulster Cycle of Irish mythology. Daughter of Eochaid Sálbuide. Also the mother of Cormac Cond Longas by incest with Conchobar mac Nessa
2Middle Englishnesse
3Old Englishnæsnot, not at all; not; first/third-person singular...
4Proto-Germanicnasjąfoothill; headland; cape
5Proto-Indo-Europeannéh₂snose
Every word from Ancient Greek ΣέλαςEvery word from Ancient Greek σελήνηEvery word from Latin dies Lūnae
Mondayishness — Etymology, Origin & Word History | Etymology Explorer