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Old English swan
Old English swon (alter)
Old English suan (alter)
Old English suon (alter)
Old English ielfete (link)
Old English sweġen (doublet)
German Schwan (cognate)
Middle English swan (link)
Middle English swone (link)
Proto-Germanic *swanaz (inherited)
Proto-Germanic *swainaz (inherited)
Proto-West Germanic *swan (inherited)
Old High German swan (cognate)
Proto-Indo-European *swen- (derived)
Low German Swaan (cognate)
Dutch zwaan (cognate)
Old Norse svanr (cognate)
Old Norse - (mention)
Old Saxon swan (cognate)
Swedish svan (cognate)

English swan (inherited)
English Swanage (derived)
English Swancott (derived)
Middle English swan (inherited)
Middle English suan (inherited)
Old Norse svanr (cognate)