Where does “light-witted” come from?

light-witted (Middle English) comes 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.

Ancestry of “light-witted”, step by step

light-witted traces back through two separate lines of ancestry.

via Middle English light

StepLanguageWordMeaning
1Middle EnglishlightThe radiation which allows for vision by...
2Old Englishlēohtluminous, bright, light, clear, resplendent,...
3Proto-West Germanicleuhtlight, bright; light
4Proto-Germanicleuhtąlight
5Proto-Indo-Europeanlewktom
6Proto-Indo-Europeanlewk-bright; to shine; to see

via Middle English witted

StepLanguageWordMeaning
1Middle Englishwittedhaving intelligence or understanding
Every word from Proto-Indo-European lewk-Every word from Proto-Indo-European lewktomEvery word from Proto-Germanic leuhtą
light-witted — Etymology, Origin & Word History | Etymology Explorer