Where does “lightweightness” come from?

lightweightness (English) comes from English lightweight, from English Light, from Middle English light, from Old English lēoht, from Proto-West Germanic leuht, from Proto-Germanic leuhtą, from Proto-Indo-European lewktom, from Proto-Indo-European lewk- — bright; to shine; to see.

lightweightness (English): The quality or condition of being lightweight

Definitions

  1. The quality or condition of being lightweight

Ancestry of “lightweightness”, step by step

lightweightness traces back through two separate lines of ancestry.

via English lightweight

StepLanguageWordMeaning
1EnglishlightweightA particular weight class, or member of such, as...
2EnglishLightA place name
3Middle EnglishlightThe radiation which allows for vision by...
4Old Englishlēohtluminous, bright, light, clear, resplendent,...
5Proto-West Germanicleuhtlight, bright; light
6Proto-Germanicleuhtąlight
7Proto-Indo-Europeanlewktom
8Proto-Indo-Europeanlewk-bright; to shine; to see

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 lewk-