"sky" (Indo-European roots)

3-Second Blueprint (English)

1. In Old English, 'heaven' had no religious meaning and simply served as the everyday native word for the physical sky.
2. Modern English borrowed 'sky' from Old Norse 'ský', which originally meant 'cloud' and still does in Scandinavian languages.
3. Unlike shared bright-sky deity roots, everyday sky words across Indo-European—like Latin 'caelum' and Greek 'Ouranos'—are unrelated.