Donossor
Guesswork as to possible Spanish variant
Donosso
Guesswork as to possible Spanish variant
Donozo
Guesswork as to possible Spanish variant
Donoso
Guesswork as to possible Spanish variant
O’Dunofhue
O Dunewu
O Dunayo
Odunaho
Odun
Probably O’Dunn(e) from O Duinn or O Doinn