The surname Daley first appeared in Ireland. Etymology may be defined as the history of a word, revealed through the analysis of its parts, and by tracing its roots to past times and even to foreign languages. Such a study is of particular interest when applied to a name. Daley is a variation of the names Daly, O’Daly which are originated in Ireland too.. We found more information regarding this Last Name also in other historical archives. Over the centuries the name Daley may have had many changes and the present form, according to our studies, appears to be different from the original. It is important to realize that the name may have gone through dialect variations, contractions, shortened forms of the original one, lenitions, errors due to incorrect …