Mac Ospaic Mac Ospaic Mac Ospaic is masculine surname in the Irish language. The name translates into English as "son of "Ospac"". The surname originated as a patronym, however it no longer refers to the actual name of the bearer's father. There are specific forms of the surname that are borne by married and unmarried females. There is at least one Anglicised form of the surname. "Mac Ospaic" translates into English as "son of "Ospac"". The surname originated as a patronym, however it no longer refers to the actual name of the bearer's father. The name "Ospac" is a Gaelic derivative of
Crowley (surname) three-quarters of the family originating from there. The Irish "O Cruadhlaoich" or "Ua Cruadhlaoich", a Gaelic name meaning "descendant of the hard hero" or "descendant of the hardy warrior", was anglicised to "Crowley" or "O'Crowley". Variants include Crawley, Crowly, O'Crowley, Croaley, Croawley, O'Crowly and many more. Crowley (surname) The Irish surname Crowley was first found in Moylurg, in the County Roscommon, where they started as a branch of the MacDermots. It is from Teige, a Prince of Moylurg, down to Cruadhlaoch that the line of descent for the Crowleys begins. A junior branch of the Crowley family also emerged and