Where does “QD” come from?

QD (English) comes from Latin die, from Latin dies, from Latin diem, from Proto-Italic djēm, from Proto-Italic *djous, from Proto-Indo-European dyḗws, from Proto-Indo-European dyéws, from Proto-Indo-European dyew- — to be bright; sky, heaven.

QD (English): once per day; Initialism of quantum dot

Definitions

  1. once per day; Initialism of quantum dot

Ancestry of “QD”, step by step

StepLanguageWordMeaning
1Latindieablative singular of diēs; day; before the day
2LatindiesA day, "particularly:"
3Latindiemaccusative singular of diēs
4Proto-Italicdjēmaccusative singular of *djous
5Proto-Italic*djous—
6Proto-Indo-Europeandyḗwssky, heaven; sky god
7Proto-Indo-Europeandyéwssky, heaven
8Proto-Indo-Europeandyew-to be bright; sky, heaven
Every word from Proto-Indo-European dyew- →Every word from Proto-Indo-European dyéws →Every word from Proto-Indo-European dyḗws →