De Bús
de BÚS—XI—de Bois, de Boys, Boyse, Boyes, Boice, Boyce; Norman 'del Bois,' 'de Bois,' i.e., of the wood, from residence by or near a wood; a surname of Norman origin which has been known in Ireland at least since the early 13th century. Compare with the English de Bhóid above.
Alphabetical Index to Irish Surnames