Where does “moldiness” come from?

moldiness (English) comes from English moldy, from English mold, from Middle English molde, from Old French modle, from Latin modulus, from Latin -ulus, from Proto-Italic -olos, from Proto-Italic -elos — Forms agent nouns from verbal roots.

moldiness (English): The state or degree of being moldy

Definitions

  1. The state or degree of being moldy

Ancestry of “moldiness”, step by step

moldiness traces back through two separate lines of ancestry.

via English moldy

StepLanguageWordMeaning
1EnglishmoldyCovered with mold; Stale or musty
2EnglishmoldA hollow form or matrix for shaping a fluid or...
3Middle Englishmoldedirt loose soil
4Old Frenchmodle
5Latinmodulusa small measure or interval; a module; a water...
6Latin-ulusUsed to form a diminutive of a noun, indicating...
7Proto-Italic-olos
8Proto-Italic-elosForms desubstantival and deadjectival diminutive nouns
9Proto-Indo-European-e-lós
10Proto-Indo-European-lósForms agent nouns from verbal roots

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 -lós