McLaughlin (surname) McLaughlin (surname) M(a)cLaughlin is the most common English form of "Mac Lochlainn", a masculine surname of Irish origin. The feminine form of the surname is "Nic Lochlainn". The literal meaning of the name is "son of "Lochlann"". Note that "Mc" is simply a contraction of "Mac", which is also (albeit rarely) truncated to "M' ". Thus, "MacLaughlin", "McLaughlin" and "M'Laughlin" are the same Anglicism, the latter two merely contractions of the first. The original surname Mac/Nic Lochlainn was borne by a family of Cenél nEógain, a branch of the historic northern O'Neill dynasty, reputedly founded by Niall Noígíallach. This family
Lithgow (surname) Lithgow (surname) Lithgow is a surname originating from Scottish as a habitational name from Linlithgow, between Edinburgh and Falkirk, which was probably named with British words related to modern Welsh "llyn" ‘lake’, ‘pool’ + "llaith" ‘damp’ + "cau" ‘hollow’.In the 13th and 14th centuries the name appears both with and without the first syllable. Originally, Lithgow was the name of the settlement and Linlithgow that of the lake. Lithgow was associated by folk etymology with Gaelic "liath" ‘gray’ + "cu" ‘dog’, and such a figure appears on the medieval borough seal. The surname, is well represented in the Dominican Republic,