Where does “floorlessness” come from?

floorlessness (English) comes from English floorless, from English floor, from Middle English flor, from Old English flōr, from Proto-Germanic flōraz, from Proto-Indo-European pleh₂ros, from Proto-Indo-European pleh₂- — flat.

floorlessness (English): Absence of a floor

Definitions

  1. Absence of a floor

Ancestry of “floorlessness”, step by step

floorlessness traces back through two separate lines of ancestry.

via English floorless

StepLanguageWordMeaning
1EnglishfloorlessLacking a floor
2EnglishfloorThe interior bottom or surface of a house or...
3Middle EnglishflorA floor; the bottom surface of a room or...
4Old Englishflōrfloor, pavement, ground; floor, pavement, ground,...
5Proto-Germanicflōrazground; floor
6Proto-Indo-Europeanpleh₂rosflat; floor
7Proto-Indo-Europeanpleh₂-flat

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 pleh₂-