Croit is the manx term for what in England was a 'croft' ie a small farm
Croit e Craine ? or something like this ?
The Manx Giant was Arthur Caley see http://www.ee.surrey.ac.uk/Contrib/manx/fulltext/worthies/p199a.htm
(sorry the full page is still to be done - I have the reference article + some other work but put it aside for a bit