McCoy and Galloglass are both Anglicisations of terms from what language?
McCoy (surname) McCoy is a common surname of Scottish origin in the lands of Kintyre and then Irish (Gallowglass) origin. It is an Anglicisation of its Irish Gaelic form Mac Aodha, meaning "son of Aodh" (an old word for "Fire", a Celtic deity). It is particularly found in Ulster (Counties Antrim, Armagh and Monaghan) where many settled around the 13th century, having been Gallowglasses, and also in counties Limerick and Cork. Aoidh and Mac Aoigh were sometimes Anglicised as Hugh and McHugh.
Pseudo-anglicism Pseudo-anglicisms are words in languages other than English which were borrowed from English but are used in a way native English speakers would not readily recognize or understand. Pseudo-anglicisms often take the form of compound words, combining elements of multiple English words to create a new word that appears to be English but is unrecognisable to a native speaker of English. It is also common for a genuine English word to be used to mean something completely different from its original meaning.