Where does “sunne” come from?

sunne (Norwegian Bokmål) comes from Norwegian Bokmål sunn, from German gesund, from Middle High German gesunt, from Old High German gisunt, from Proto-West Germanic gasund, from Proto-Germanic sundaz, from Proto-Indo-European swent- — vigorous, active, healthy; active, healthy.

sunne (Norwegian Bokmål): definite singular of sunn; plural of sunn