McCoy and Galloglass are both Anglicisations of terms from what language?
Irish
Title: Gallowglass
Passage: The gallowglasses (also spelt galloglass, gallowglas or galloglas; from Irish: "gall óglaigh" meaning foreign warriors) were a class of elite mercenary warriors who were principally members of the Norse-Gaelic clans of Scotland between the mid 13th century and late 16th century.  As Scots, they were Gaels and shared a common background and language with the Irish, but as they had intermarried with the 10th century Norse settlers of western Scotland, the Irish called them "Gall Gaeil" ("foreign Gaels").
Title: Jason L. McCoy
Passage: Jason L. McCoy is the former mayor of Vernon, Connecticut, and a trial lawyer.  In 2009, McCoy was elected to his first term in 2007.  McCoy was re-elected as mayor.  He had served on the Vernon Town Council and was the deputy mayor of Vernon from 2005 to 2007.  In 2009, McCoy was one of six mayors in Connecticut chosen by the Governor M. Jodi Rell to work closely with state officials and lawmakers to identify savings and recommend mandate relief to help close Connecticut's state budget shortfall.  McCoy served as mayor of a municipality that holds town meetings to pass the mayor's yearly proposed municipal budget, which can then be sent to referendum for approval by privately cast ballot.  During McCoy’s two terms (four years) as mayor of Vernon he proposed and passed four municipal budgets.  The Town of Vernon municipal budgets during McCoy’s terms as mayor resulted in the municipal tax rate or mil rate needed to fund the municipal budget being reduced in the 2008–2009, 2009-2010 budgets, the 2010-2011 tax rate or mil rate remained the same.  In the 2011-2012 budget the tax rate was cut which resulted in a taxes cut to the taxpayers in the Town of Vernon, Connecticut.  The 2011–2012 budget proposal was passed and adopted at the annual town meeting as opposed to being sent to referendum.
Title: McCoy (surname)
Passage: 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.
McCoy (surname) Gallowglass