Where does “ratlessness” come from?

ratlessness (English) comes from English ratless, from English rat, from Middle English raat, from Old English ræt, from Old English rætt, from Proto-Germanic rattaz, from Proto-Indo-European Hreh₃d- — to scrape.

ratlessness (English): Absence of rats

Definitions

  1. Absence of rats

Ancestry of “ratlessness”, step by step

ratlessness traces back through two separate lines of ancestry.

via English ratless

StepLanguageWordMeaning
1EnglishratlessWithout rats
2EnglishratA medium-sized rodent belonging to the genus...
3Middle EnglishraatAlternative form of ratte
4Old EnglishrætAlternative form of rætt
5Old Englishrættrat
6Proto-Germanicrattazrat
7Proto-Indo-EuropeanHreh₃d-to scrape

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 Hreh₃d-Every word from Proto-Germanic rattazEvery word from Old English rætt