Donald

Donald is a masculine given name derived from the Gaelic name Dòmhnall.[1] This comes from the Proto-Celtic *Dumno-ualos ("world-ruler" or "world-wielder").[2][3][4] The final -d in Donald is partly derived from a misinterpretation of the Gaelic pronunciation by English speakers, and partly associated with the spelling of similar-sounding Germanic names, such as Ronald. A short form of Donald is Don. Pet forms of Donald include Donnie and Donny. The feminine given name Donella is derived from Donald.[1]

Donald has cognates in other Celtic languages: Modern Irish Dónal (anglicised as Donal and Donall);[5] Scottish Gaelic Dòmhnall,[6] Domhnull[7] and Dòmhnull;[8] Welsh Dyfnwal and Cumbric Dumnagual. Although the feminine given name Donna is sometimes used as a feminine form of Donald, the names are not etymologically related.[1]

Domnall or Domhnall is the name of many ancient and medieval Gaelic kings and noblemen: