The Roman Map of Britain Doerada Island of Jura, Hebrides

Daroecla var. Daroeda (R&C 295) next

A d split to form cl (Vatican ms. only) and the metathesis of a and oe, for Doerada. 

 The Annals of Ulster 687 records Jura  as Doirad Eilinn (Gaelic eilean 'island'). (Watson treats dóirad Eilinn as 'the enslavement of Elenn'.) Daroecla stands between two candidates for Adómnan's Ilea Islay, Elete 294 and Esse 296.