Where does “thumblessness” come from?

thumblessness (English) comes from English thumbless, from English thumb, from Middle English þombe, from Old English þūma, from Proto-West Germanic þūmō, from Proto-Germanic þūmô, from Proto-Indo-European tūm-, from Proto-Indo-European tewh₂- — to swell; to crowd; to be strong.

thumblessness (English): Absence of thumbs

Definitions

  1. Absence of thumbs

Ancestry of “thumblessness”, step by step

thumblessness traces back through two separate lines of ancestry.

via English thumbless

StepLanguageWordMeaning
1EnglishthumblessWithout thumbs
2EnglishthumbThe short thick digit of the hand that for humans...
3Middle Englishþombethumb; thumb-length; big toe
4Old Englishþūmathumb
5Proto-West Germanicþūmōthumb
6Proto-Germanicþūmôthumb
7Proto-Indo-Europeantūm-to grow; to swell, to increase; to swell, be...
8Proto-Indo-Europeantewh₂-to swell; to crowd; to be strong

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 tewh₂-
thumblessness — Etymology, Origin & Word History | Etymology Explorer