The masculine
given name Donald is a version of the
Scottish Gaelic name
Domhnall (and variants
Dómhnall,
Dòmhnall,
Domhnull, and
Dòmhnull), historically the standard
Anglicization of the name in Scotland. The name is ultimately derived from the
Proto-Celtic world elements
dubno ("world") and
val ("rule"). The final -
d on
Donald is partly derived from a misinterpretation of the Gaelic pronunciation by English-speakers, and partly associated with the spelling of similar sounding Germanic-language names, such as
Ronald. A short form of
Donald is
Don.
Pet forms of
Donald include
Donnie,
Donny, and
Dolly. The feminine given name
Donella is derived from
Donald.
Donald has numerous other Celtic-language cognates:
Irish Dónal (Anglicised as
Donal and
Donall),
Old Irish Domnall,
Welsh Dyfnwal,
Old Welsh Dumngual,
Cumbric Dumngual, and
Common Celtic *
Dumno-ualos ("world-wielder"). Although the feminine given name
Donna is sometimes used as a feminine form of
Donald, the names are not etymologically related.