Where does “dumminess” come from?

dumminess (English) comes from English dummy, from English dumb, from English damn, from Middle English dampnen, from Old French dampner, from Latin damnō, from Latin damnum, from Proto-Italic dapnom — to share, divide.

dumminess (English): The quality of being silly or foolish; A disease...

Definitions

  1. The quality of being silly or foolish; A disease...

Ancestry of “dumminess”, step by step

dumminess traces back through two separate lines of ancestry.

via English dummy

StepLanguageWordMeaning
1EnglishdummyA silent person; a person who does not talk; An...
2EnglishdumbUnable to speak; lacking power of speech; Silent;...
3EnglishdamnTo condemn to hell; To condemn; to declare...
4Middle Englishdampnento damn
5Old Frenchdampnerto damn
6Latindamnōto discredit, find fault, disapprove, reject
7Latindamnumdamage or injury; loss; a fine
8Proto-Italicdapnom
9Proto-Indo-Europeandh₂pnómexpense, investment
10Proto-Indo-Europeandeh₂p-to sacrifice; to lose
11Proto-Indo-Europeandeh₂-to share, divide

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 deh₂-Every word from Proto-Indo-European deh₂p-Every word from Proto-Indo-European dh₂pnóm
dumminess — Etymology, Origin & Word History | Etymology Explorer