Old English regnboga

← Old English reġn (compound)

← Old English boga (compound)

← Proto-Germanic *regnabugô (inherited)

← Old High German reginbogo (cognate)

← Proto-Indo-European *bʰewgʰ- (root)

← Old Norse regnbogi (cognate)

← Old Dutch *reganbogo (cognate)

← Old Frisian reinboga (cognate)

← Old Saxon *reganbogo (cognate)