Where does “intraday” come from?

Intraday comes from English day combined with the prefix intra-, from Latin intra meaning "within," ultimately derived from Proto-Indo-European dʰegʷʰ-.

intraday (English): occurring during a single day

Definitions

  1. occurring during a single day

Ancestry of “intraday”, step by step

StepLanguageWordMeaning
1EnglishDayderived from a medieval diminutive of David
2Middle Englishdayday; daylight, sunlight; epoch, age, period
3Old Englishdæġday, daytime
4Proto-West Germanicdagday
5Proto-Germanicdagazday; name of the D-rune
6Proto-Indo-Europeandʰegʷʰ-to burn; warm, hot
Every word from Proto-Indo-European dʰegʷʰ- →Every word from Proto-Germanic dagaz →Every word from Proto-West Germanic dag →