Where does “blue hour” come from?

blue hour (English) comes from French heure bleue, from French heure, from Middle French heure, from Old French houre, from Latin hōra, from Ancient Greek ὥρα, from Proto-Hellenic *worā, from Proto-Indo-European wēr- — to burn; to cover, heed, notice; squirrel.

blue hour (English): The period of twilight each morning and evening...

Definitions

  1. The period of twilight each morning and evening...

Ancestry of “blue hour”, step by step

StepLanguageWordMeaning
1Frenchheure bleueblue hour
2Frenchheurehour, time; o'clock
3Middle Frenchheurehour
4Old Frenchhourehour; time; moment to do something
5Latinhōrahour
6Ancient Greekὥραany defined period of time; season; climate
7Proto-Hellenic*worā
8Proto-Indo-Europeanwēr-true
9Proto-Indo-Europeanwer-to burn; to cover, heed, notice; squirrel
Every word from Proto-Indo-European wer-Every word from Proto-Indo-European wēr-Every word from Proto-Hellenic *worā
blue hour — Etymology, Origin & Word History | Etymology Explorer