Where does “𐍃𐍅𐌹𐌽𐌸𐍃” come from?

𐍃𐍅𐌹𐌽𐌸𐍃 (Gothic) comes from Proto-Germanic swinþaz, from Proto-Indo-European swent- — vigorous, active, healthy; active, healthy.

𐍃𐍅𐌹𐌽𐌸𐍃 (Gothic): strong, healthy