Origin of the name ISOLDE.
Etymology of the
Meaning of the baby name ISOLDE.
English Arthurian. Of Germanic origin, probably from Old
German Iswalda (q.v.), meaning "ice-ruler."
(Journal of the American-Irish Historical Society, v.13, 1914).
Usage: Austria, England, Germany.
... Celtic Esyllt
was the French Yseulte,
or Ysoude, the Italian
Isolta, and English Ysolte, Isolde, or
and in all these shapes was frequent in the families of the middle ages;
recurring again and again in registers, down to the seventeenth
century... (History of Christian Names, Yonge, 1884)