O.E. swan, from P.Gmc. *swanaz (cf. O.S. swan, O.N. svanr, M.Du. swane, Du. zwaan, O.H.G. swan, Ger. Schwan), probably lit. "the singing bird," from PIE base *swon-/*swen- "to sing, make sound" (see
sound (n.1)); thus related to O.E. geswin "melody, song" and swinsian "to