Mac Amhalghaidh Mac Amhalghaidh Mac Amhalghaidh is an Irish masculine surname. The name translates into English as "son of "Amhalghadh"". The surname originated as a patronym, however it no longer refers to the actual name of the bearer's father. The form of the surname for unmarried females is Nic Amhalghaidh. The forms for married females are Bean Mhic Amhalghaidh and Mhic Amhalghaidh. The Irish "Mac Amhalghaidh" has numerous Anglicised forms. The surname has been borne by at least one notable Irish family. A cognate of "Mac Amhalghaidh" is the Scottish Gaelic MacAmhalghaidh; the feminine form of which is NicAmhalghaidh. There are several
Mac and Mc together example has been taken as representative of a possible paradigm. A book on filing rules from 1918 gives an example showing Mc and M' treated as abbreviations, i.e. for Mac, and ordered as if in the expanded version; and a similar book from 1922 makes the rule one of a number that apply also to St. (Saint) and Mrs. (Mistress). A 1938 book that is a comparative study of cataloguing in various British libraries regarded Mac + Mc + M' sorting as an example of achieved "standardisation" in alphabetisation. It gave further examples where, it argued, such standardisation would be