Where does “lastness” come from?

lastness (English) comes from English last, from Middle English last, from Old English hlæst, from Proto-Germanic hlastuz, from Proto-Indo-European kleh₂-, from Proto-Indo-European kelh₂- — to beat; to break.

lastness (English): The quality of being or coming last; finality

Definitions

  1. The quality of being or coming last; finality

Ancestry of “lastness”, step by step

lastness traces back through two separate lines of ancestry.

via English last

StepLanguageWordMeaning
1EnglishlastFinal, ultimate, coming after all others of its...
2Middle Englishlastfault, vice; load
3Old Englishhlæstload, freight, cargo
4Proto-Germanichlastuzload, burden, cargo, freight
5Proto-Indo-Europeankleh₂-to put; to lay out
6Proto-Indo-Europeankelh₂-to beat; to break

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 kelh₂-