Where does “stairlessness” come from?

stairlessness (English) comes from English stairless, from English stair, from Middle English steire, from Old English stǣġer, from Proto-Germanic staigriz, from Proto-Indo-European steyǵʰ- — to go.

stairlessness (English): Absence of stairs

Definitions

  1. Absence of stairs

Ancestry of “stairlessness”, step by step

stairlessness traces back through two separate lines of ancestry.

via English stairless

StepLanguageWordMeaning
1EnglishstairlessWithout stairs
2EnglishstairA single step in a staircase; A series of steps;...
3Middle Englishsteirestaircase, stairs; stair, step; ladder
4Old Englishstǣġerstair, staircase
5Proto-Germanicstaigrizscaffold, platform; stairs
6Proto-Indo-Europeansteyǵʰ-to go

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 steyǵʰ-Every word from Proto-Germanic staigrizEvery word from Old English stǣġer