Pádraig imparted knowledge as to ‘Paghan’ being translation of the surname Payne, and also possibly Pine.
I was reminded of this recently when I spotted Payne Lane in Athlone.
Logainm does not agree and believes that the street name derives from the tree – Sráid na Giúise. As the street was renamed Pine Street, it is quite probable that buildings rather than trees were prominent and so Pine surname is a more likely source than a tree.
For now, need to be alert as to mention of or reference to Payne’s or Pine’s in Cork, pre-early nineteenth century.