Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
HARDINGE
As described in historical dictionaries
Patronymica Britannica (1860)
HARDIXG. HARDINGE. "The Hardings — in A-Sax. Heardingas, iu Old Norse Haddingjar — wei'e celebrated as an illustrious and heroic race. Grimm supposes them to have been an Eastlying people of the Danes and Swedes. (Deutsch Myth.)" Ferguson. The late Lord Hardinge claimed to be descended from a Danish family settled near Derby. I'he Domesday forms are Harding, Hardingus, Hardinc and Filius Harding. The soft sound given to the G, ■when the E final is employed, seems to be a modern affectation, quite unworthy of this sturdy old racb.