Where does “lengthlessness” come from?

lengthlessness (English) comes from English lengthless, from English length, from Middle English lengthe, from Old English lengþu, from Proto-Germanic langiþō, from Proto-Germanic langaz, from Proto-Indo-European dlongʰos — long.

lengthlessness (English): Absence of length

Definitions

  1. Absence of length

Ancestry of “lengthlessness”, step by step

lengthlessness traces back through two separate lines of ancestry.

via English lengthless

StepLanguageWordMeaning
1EnglishlengthlessWithout length
2EnglishlengthThe distance measured along the longest dimension...
3Middle Englishlengthelength
4Old Englishlengþulength
5Proto-Germaniclangiþōlongness, length
6Proto-Germaniclangazlong
7Proto-Indo-Europeandlongʰoslong

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 dlongʰosEvery word from Proto-Germanic langazEvery word from Proto-Germanic langiþō