Where does “sunbow” come from?

sunbow (English) comes from English bow, from Middle English bowe, from Old English boga, from Proto-West Germanic bogō, from Proto-Germanic bugô, from Proto-Indo-European bʰugʰ-, from Proto-Indo-European bʰewgʰ- — to bend; curve, arch.

sunbow (English): A bow or arc of prismatic colors like a rainbow,...

Definitions

  1. A bow or arc of prismatic colors like a rainbow,...

Ancestry of “sunbow”, step by step

sunbow traces back through two separate lines of ancestry.

via English bow

StepLanguageWordMeaning
1EnglishbowA weapon made of a curved piece of wood or other...
2Middle Englishbowebow; bowman
3Old Englishbogabow; arch
4Proto-West Germanicbogōarch, bow; bow
5Proto-Germanicbugôbow
6Proto-Indo-Europeanbʰugʰ-bow; arch
7Proto-Indo-Europeanbʰewgʰ-to bend; curve, arch

via English Sun

StepLanguageWordMeaning
1EnglishSunAbbreviation of Sunday
2Middle EnglishsunneAlternative form of sonne; sun
3Old Englishsunnesun
4Proto-West Germanicsunnāsun
5Proto-Germanicsunnǭthe sun
6Proto-Indo-Europeansh̥₂uénsun; the Sun
7Proto-Indo-Europeansóh₂wl̥sun
Every word from Proto-Indo-European bʰewgʰ- →Every word from Proto-Indo-European bʰugʰ- →Every word from Proto-Germanic bugô →