Family name origins & meanings
- English : habitational name for someone from Dundon, a place in Somerset, named from Old English dūn ‘hill’ + denu ‘valley’.
- Irish (of Norman origin) : habitational name, de Aunou (from a place in Orne, France) or de Auney, from any of various places named Aunay, for example in Calvados and Seine-et-Oise, France.