Where does “mouldiness” come from?

mouldiness (English) comes from English mouldy, from English mould, from Middle English mowlde, from Middle English mowled, from Middle English moulen, from Old Norse mygla, from Proto-Germanic muglōną, from Proto-Germanic mukiz — slick, slimy, slippery, to slide; to make a quick...

mouldiness (English): The state or quality of being mouldy

Definitions

  1. The state or quality of being mouldy

Ancestry of “mouldiness”, step by step

mouldiness traces back through two separate lines of ancestry.

via English mouldy

StepLanguageWordMeaning
1EnglishmouldyCovered with mould; Neglected; worthless; lousy;...
2EnglishmouldAlternative spelling of mold
3Middle Englishmowldemold tiny fungi
4Middle Englishmowled
5Middle Englishmoulen
6Old Norsemyglato grow mouldy or musty; mouldiness, mustiness
7Proto-Germanicmuglōną
8Proto-Germanicmukizsoft substance
9Proto-Indo-Europeanmewk-slick, slimy, slippery, to slide; to make a quick...

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 Proto-Indo-European mewk-Every word from Proto-Germanic mukizEvery word from Proto-Germanic muglōną