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Moore has
CREGEEN, contracted from O'CRIOCAIN, Criocan's son.'

CREGEEN may possibly be contracted from Mac Ria,-hain (corrupted Mac Regan:) Riaghan is a diminutive of riach, grey,' or sometimes 'swarthy.'

Compare (Irish) CREIGHAN, CREGAN.

CRIGENE [1649], CREDGEEN [1654], CREDJEEN [1708], CREGERN [1722].

common Jurby, German, Lonan elsewhere uncommon - these are not southern parishes