Mac Eachadha
Mac EACHADHA, Mac EACHAIDH—IV—M'Kaghoe, M'Caghie, MacAghy, MacCahugh, MacCaghy, MacCaughey, MacCahy, Caughy, Cahy, (Hackett), and sometimes, by 'translation,' Steed, Steedman; 'son of Eachaidh'; variant of Mac Eochadha, Mac Eochaidh, Mag Eochaidh, which see.
Alphabetical Index to Irish Surnames